{"id":3180,"date":"2018-07-12T11:41:57","date_gmt":"2018-07-12T10:41:57","guid":{"rendered":"http:\/\/tacticalreviews.co.uk\/wp\/?p=3180"},"modified":"2020-03-16T19:03:42","modified_gmt":"2020-03-16T19:03:42","slug":"performance-review-emisar-d4-quad-nichia-219c-led-light","status":"publish","type":"post","link":"https:\/\/tacticalreviews.co.uk\/?p=3180","title":{"rendered":"Performance Review: Emisar D4 &#8211; Quad Nichia 219C LED Light"},"content":{"rendered":"<p>The Emisar D4, made by Hank Wang of <a href=\"https:\/\/intl-outdoor.com\/emisar-d4-high-power-led-flashlight-p-921.html?\" target=\"_blank\" rel=\"noopener noreferrer\">Intl-Outdoor<\/a>, is one of those lights that has created such a stir with its stunning output levels, that if you haven&#8217;t come across it yet, you will do. Hank has created a light by which others will be judged and at an amazingly low price. Coming in several flavours of LED, with varying maximum output levels, the light on test here is the Neutral White 90CRI Nichia 219CT LED version. Also included with this review sample is the 18350 tube allowing it to be used with 18350 and 16340 cells. <\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-angle-P1320298.jpg\" alt=\"\" width=\"800\" height=\"577\" class=\"aligncenter size-full wp-image-3182\" srcset=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-angle-P1320298.jpg 800w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-angle-P1320298-600x433.jpg 600w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-angle-P1320298-300x216.jpg 300w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-angle-P1320298-768x554.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Taking a more detailed look:<\/h3>\n<style type=\"text\/css\">\n#foogallery-gallery-3186 .fg-image { width: 150px; }\n#foogallery-gallery-3186 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-foobox fg-center fg-m-col2 fg-default fg-ready fg-dark fg-border-thin fg-round-medium fg-loading-default fg-loaded-fade-in fg-caption-hover fg-hover-fade fg-hover-zoom fg-no-js\" id=\"foogallery-gallery-3186\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:false,&quot;showCaptionDescription&quot;:true},&quot;lazy&quot;:true,&quot;src&quot;:&quot;src&quot;,&quot;srcset&quot;:&quot;srcset&quot;}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/01-Emisar-D4-contents-P1320279.jpg\" data-attachment-id=\"3187\" data-caption-title=\"01 Emisar D4 contents P1320279\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/01-Emisar-D4-contents-P1320279\/439519467.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/02-Emisar-D4-18350-tube-P1320280.jpg\" data-attachment-id=\"3188\" data-caption-title=\"02 Emisar D4 18350 tube P1320280\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/02-Emisar-D4-18350-tube-P1320280\/1247478542.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/03-Emisar-D4-threads-P1320286.jpg\" data-attachment-id=\"3189\" data-caption-title=\"03 Emisar D4 threads P1320286\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/03-Emisar-D4-threads-P1320286\/3100442199.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/04-Emisar-D4-cap-P1320295.jpg\" data-attachment-id=\"3190\" data-caption-title=\"04 Emisar D4 cap P1320295\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/04-Emisar-D4-cap-P1320295\/3712779198.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/05-Emisar-D4-button-P1320304.jpg\" data-attachment-id=\"3191\" data-caption-title=\"05 Emisar D4 button P1320304\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/05-Emisar-D4-button-P1320304\/3211674374.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/06-Emisar-D4-tail-contacts-P1320316.jpg\" data-attachment-id=\"3192\" data-caption-title=\"06 Emisar D4 tail contacts P1320316\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/06-Emisar-D4-tail-contacts-P1320316\/3169091123.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/07-Emisar-D4-head-contacts-P1320319.jpg\" data-attachment-id=\"3193\" data-caption-title=\"07 Emisar D4 head contacts P1320319\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/07-Emisar-D4-head-contacts-P1320319\/3989977040.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/08-Emisar-D4-head-tail-P1320322.jpg\" data-attachment-id=\"3194\" data-caption-title=\"08 Emisar D4 head tail P1320322\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/08-Emisar-D4-head-tail-P1320322\/3080872995.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/09-Emisar-D4-optic-P1320325.jpg\" data-attachment-id=\"3195\" data-caption-title=\"09 Emisar D4 optic P1320325\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/09-Emisar-D4-optic-P1320325\/1728749348.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/10-Emisar-D4-optic-front-P1320326.jpg\" data-attachment-id=\"3196\" data-caption-title=\"10 Emisar D4 optic front P1320326\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/10-Emisar-D4-optic-front-P1320326\/1562440477.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/11-Emisar-D4-optic-exposed-P1320332.jpg\" data-attachment-id=\"3197\" data-caption-title=\"11 Emisar D4 optic exposed P1320332\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/11-Emisar-D4-optic-exposed-P1320332\/806503236.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/12-Emisar-D4-18650-20a-P1320348.jpg\" data-attachment-id=\"3198\" data-caption-title=\"12 Emisar D4 18650 20a P1320348\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/12-Emisar-D4-18650-20a-P1320348\/3141823282.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/13-Emisar-D4-18650-size-P1320352.jpg\" data-attachment-id=\"3199\" data-caption-title=\"13 Emisar D4 18650 size P1320352\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/13-Emisar-D4-18650-size-P1320352\/1539691566.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/14-Emisar-D4-18350-size-P1320355.jpg\" data-attachment-id=\"3200\" data-caption-title=\"14 Emisar D4 18350 size P1320355\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/14-Emisar-D4-18350-size-P1320355\/4143639235.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n<h3>The beam<\/h3>\n<p><i>Please be careful not to judge tint based on images you see on a computer screen. Unless properly calibrated, the screen itself will change the perceived tint.<\/p>\n<p>The indoor beamshot is intended to give an idea of the beam shape\/quality rather than tint. All beamshots are taken using daylight white balance. The woodwork (stairs and skirting) are painted Farrow &amp; Ball &#8220;Off-White&#8221;, and the walls are a light sandy colour called &#8216;String&#8217; again by Farrow &amp; Ball. I don&#8217;t actually have a &#8216;white wall&#8217; in the house to use for this, and the wife won&#8217;t have one!<\/i><br \/>\n&nbsp;<br \/>\n<style type=\"text\/css\">\n#foogallery-gallery-3208 .fg-image { width: 150px; }\n#foogallery-gallery-3208 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-foobox fg-center fg-m-col2 fg-default fg-ready fg-dark fg-border-thin fg-round-medium fg-loading-default fg-loaded-fade-in fg-caption-hover fg-hover-fade fg-hover-zoom fg-no-js\" id=\"foogallery-gallery-3208\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:true,&quot;showCaptionDescription&quot;:true},&quot;lazy&quot;:true,&quot;src&quot;:&quot;src&quot;,&quot;srcset&quot;:&quot;srcset&quot;}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/15-Emisar-D4-indoor-beam-P1320641.jpg\" data-attachment-id=\"3183\" data-caption-title=\"15 Emisar D4 indoor beam P1320641\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/15-Emisar-D4-indoor-beam-P1320641\/2104681541.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/16-Emisar-D4-outdoor-beam-P1320647.jpg\" data-attachment-id=\"3184\" data-caption-title=\"16 Emisar D4 outdoor beam P1320647\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/16-Emisar-D4-outdoor-beam-P1320647\/1811665887.jpg\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n<br \/>\n&nbsp;<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/15-Emisar-D4-indoor-beam-P1320641.jpg\" alt=\"\" width=\"800\" height=\"600\" class=\"aligncenter size-full wp-image-3183\" srcset=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/15-Emisar-D4-indoor-beam-P1320641.jpg 800w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/15-Emisar-D4-indoor-beam-P1320641-600x450.jpg 600w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/15-Emisar-D4-indoor-beam-P1320641-300x225.jpg 300w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/15-Emisar-D4-indoor-beam-P1320641-768x576.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Modes and User Interface:<\/h3>\n<p>From OFF:<br \/>\n1 Click &#8211; Turn ON to memorised level.<br \/>\nPress and Hold &#8211; Turn ON to minimum and Ramp up.<br \/>\n2 Clicks &#8211; Turn ON to Max output.<br \/>\n3 Clicks &#8211; Enter Voltage Battery Check (longer flash indicates a 1, short flash indicates a 0. Whole Volts first, then tenths).<br \/>\nFrom Voltage Battery Check 2 Clicks to enter Temperature Check (longer flash indicates a 1, short flash indicates a 0. Tens of Degrees C first, then Ones)<br \/>\n4 Clicks &#8211; Set to use Tactical (Max output) Momentary mode. 4 Clicks to cancel this mode.<br \/>\n6 Clicks &#8211; Lockout. 6 Clicks to cancel.<br \/>\n8 Clicks &#8211; Beacon Mode<br \/>\n10+ Clicks and hold &#8211; Thermal configuration. Hold the button until the D4 is as hot as you want it to get.<br \/>\nWhen ON press and hold to ramp up or down in output.<\/p>\n<h3>Batteries and output:<\/h3>\n<p>The Emisar D4 runs on several cell types depending on the battery tube you buy. In this case there is the 18650 tube and the 18350 which also allows a 16340 to be used. Only IMR cells should be used in this high performance light and a 20A output should be considered a minimum.<\/p>\n<p><i>To measure actual output, I built an integrating sphere. See <a href=\"http:\/\/tacticalreviews.co.uk\/wp\/?page_id=124\" target=\"_blank\" rel=\"noopener noreferrer\">here<\/a> for more detail. The sensor registers visible light only (so Infra-Red and Ultra-Violet will not be measured).<\/i><\/p>\n<p><b>Please note, all quoted lumen figures are from a DIY integrating sphere, and according to ANSI standards. Although every effort is made to give as accurate a result as possible, they should be taken as an estimate only. The results can be used to compare outputs in this review and others I have published.<\/b><\/p>\n<pre>\r\n         Emisar D4             |   I.S. measured    |  PWM frequency or    \r\n     using specified cell      | ANSI output Lumens | Strobe frequency (Hz)\r\n_______________________________|____________________|______________________\r\n18650 Max @ switch on NOT ANSI |     3082           |      16100           \r\n18650 IMR Max                  |     1918           |      16100           \r\n18350 Max @ switch on NOT ANSI |     2259           |      16100           \r\n18350 IMR Max                  |     1700           |      16100           \r\n16340 Max @ switch on NOT ANSI |     2029           |      16100           \r\n16340 IMR Max                  |     1714           |      16100           \r\nMoonlight                      |     <0.1           |                      \r\n<\/pre>\n<p>&nbsp;<\/p>\n<p>There is parasitic drain. When using 18650, the drain was 22.6uA (15.65 years to drain the cells). On Lockout, the drain was 25uA (14.15 years to drain the cells).<\/p>\n<p>Below is the combined runtime graph for all the types of test carried out. It includes the D4 being run in its factory thermal configuration (45\u00b0C), and then the thermal configuration taken to the max. To set the thermal configuration as high as possible, it was set while wearing kelvar gloves (the bezel reached 80\u00b0C when setting this). Tests were carried out with fan cooling.<br \/>\n&nbsp;<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-all.jpg\" alt=\"\" width=\"714\" height=\"478\" class=\"aligncenter size-full wp-image-3185\" srcset=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-all.jpg 714w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-all-600x402.jpg 600w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-all-300x201.jpg 300w\" sizes=\"auto, (max-width: 714px) 100vw, 714px\" \/><\/p>\n<p>This gallery contains the other versions of the runtime graphs.<br \/>\n<style type=\"text\/css\">\n#foogallery-gallery-3201 .fg-image { width: 150px; }\n#foogallery-gallery-3201 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-foobox fg-center fg-m-col2 fg-default fg-ready fg-dark fg-border-thin fg-round-medium fg-loading-default fg-loaded-fade-in fg-caption-hover fg-hover-fade fg-hover-zoom fg-no-js\" id=\"foogallery-gallery-3201\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:false,&quot;showCaptionDescription&quot;:true},&quot;lazy&quot;:true,&quot;src&quot;:&quot;src&quot;,&quot;srcset&quot;:&quot;srcset&quot;}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-all-1.jpg\" data-caption-title=\"All the runtime traces together.\" data-caption-desc=\"All the runtime traces together.\" data-attachment-id=\"3206\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/Emisar-D4-runtime-all-1\/2091665905.jpg\" title=\"All the runtime traces together.\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">All the runtime traces together.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-18650-temp.jpg\" data-caption-title=\"Showing the difference it makes setting the temperature regulation to its maximum.\" data-caption-desc=\"Showing the difference it makes setting the temperature regulation to its maximum.\" data-attachment-id=\"3205\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/Emisar-D4-runtime-18650-temp\/3199367918.jpg\" title=\"Showing the difference it makes setting the temperature regulation to its maximum.\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Showing the difference it makes setting the temperature regulation to its maximum.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-18650-temp-start.jpg\" data-caption-title=\"Zooming in to just the first part to show the difference it makes setting the temperature regulation to its maximum.\" data-caption-desc=\"Zooming in to just the first part to show the difference it makes setting the temperature regulation to its maximum.\" data-attachment-id=\"3204\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/Emisar-D4-runtime-18650-temp-start\/2089960608.jpg\" title=\"Zooming in to just the first part to show the difference it makes setting the temperature regulation to its maximum.\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Zooming in to just the first part to show the difference it makes setting the temperature regulation to its maximum.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-18350-temp.jpg\" data-caption-title=\"With only the 18350 and 16340 cells shown. The 18350 is also shown using the factory temperature regulation.\" data-caption-desc=\"With only the 18350 and 16340 cells shown. The 18350 is also shown using the factory temperature regulation.\" data-attachment-id=\"3203\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/Emisar-D4-runtime-18350-temp\/554023854.jpg\" title=\"With only the 18350 and 16340 cells shown. The 18350 is also shown using the factory temperature regulation.\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">With only the 18350 and 16340 cells shown. The 18350 is also shown using the factory temperature regulation.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-loading\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/Emisar-D4-runtime-18350-temp-start.jpg\" data-caption-title=\"Zooming in on just the start of the 18350 and 16340 cell&#039;s output.\" data-caption-desc=\"Zooming in on just the start of the 18350 and 16340 cell&#039;s output.\" data-attachment-id=\"3202\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img src=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/cache\/2018\/07\/Emisar-D4-runtime-18350-temp-start\/3512010313.jpg\" title=\"Zooming in on just the start of the 18350 and 16340 cell&#039;s output.\" width=\"150\" height=\"150\" class=\"skip-lazy fg-image\" decoding=\"async\" loading=\"lazy\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Zooming in on just the start of the 18350 and 16340 cell's output.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n<\/p>\n<h3><b>Review Summary<\/b><\/h3>\n<p><b>_______________________________________________<br \/>\nThings I like<br \/>\n_______________________________________________<\/b><br \/>\n3000lm+ Max Output.<br \/>\nFlexible UI.<br \/>\nExcellent Thermal regulation.<\/p>\n<p><b>_______________________________________________<br \/>\nWhat doesn't work so well for me<br \/>\n_______________________________________________<\/b><br \/>\nGets hot very fast due to lightweight construction.<br \/>\nMaximum output drops very quickly.<\/p>\n<p>&nbsp;<\/p>\n<h4>Discussing the Review:<\/h4>\n<h5><i>The ideal place to discuss this reviews is on a forum. If you started reading the shorter forum version of the review, but followed the link this full exclusive review, please return to that forum to discuss the review there.<br \/>\nIf you read the review entirely on Tactical Reviews, please consider one of the following to join in, or start, a discussion.<\/i><\/h5>\n<p><b><a href=\"http:\/\/www.candlepowerforums.com\/vb\/forumdisplay.php?19-Flashlight-Reviews\" target=\"_blank\" rel=\"noopener noreferrer\">CandlePowerForums - Flashlight Reviews Section<\/a><\/b> (Largest and Friendliest Flashlight Community Forum)<\/b><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/01\/Round-Sticker-V1-0.png\" alt=\"\" width=\"200\" height=\"200\" class=\"aligncenter size-full wp-image-2091\" srcset=\"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/01\/Round-Sticker-V1-0.png 200w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/01\/Round-Sticker-V1-0-100x100.png 100w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/01\/Round-Sticker-V1-0-150x150.png 150w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/01\/Round-Sticker-V1-0-50x50.png 50w, https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/01\/Round-Sticker-V1-0-45x45.png 45w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Emisar D4, made by Hank Wang of Intl-Outdoor, is one of those lights that has created such a stir with its stunning output levels, that if you haven&#8217;t come across it yet, you will do. Hank has created a light by which others will be judged and at an amazingly low price. Coming in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3181,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Performance Review: Emisar D4 - Quad Nichia 219C LED Light\r\n#flashlight #pocketrocket #edc #torch #review #tacticalreviews #tactical #emisar #intloutdoor","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[4],"tags":[359,20,358,357,13,360,9,57,248,147,14],"class_list":["post-3180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-light-review","tag-d4","tag-edc","tag-emisar","tag-emisar-d4","tag-flashlight","tag-pocket-rocket","tag-review","tag-tactical","tag-tactical-reviews","tag-tacticalreviews","tag-torch"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Performance Review: Emisar D4 - Quad Nichia 219C LED Light - TACTICAL REVIEWS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tacticalreviews.co.uk\/?p=3180\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Performance Review: Emisar D4 - Quad Nichia 219C LED Light - TACTICAL REVIEWS\" \/>\n<meta property=\"og:description\" content=\"The Emisar D4, made by Hank Wang of Intl-Outdoor, is one of those lights that has created such a stir with its stunning output levels, that if you haven&#8217;t come across it yet, you will do. 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Coming in [&hellip;]","og_url":"https:\/\/tacticalreviews.co.uk\/?p=3180","og_site_name":"TACTICAL REVIEWS","article_published_time":"2018-07-12T10:41:57+00:00","article_modified_time":"2020-03-16T19:03:42+00:00","og_image":[{"width":800,"height":596,"url":"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-feature-P1320301.jpg","type":"image\/jpeg"}],"author":"Subwoofer","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Subwoofer","Estimated reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/tacticalreviews.co.uk\/?p=3180#article","isPartOf":{"@id":"https:\/\/tacticalreviews.co.uk\/?p=3180"},"author":{"name":"Subwoofer","@id":"https:\/\/tacticalreviews.co.uk\/#\/schema\/person\/50b1ef6ccf80fc887678a34d7acd67c5"},"headline":"Performance Review: Emisar D4 &#8211; Quad Nichia 219C LED Light","datePublished":"2018-07-12T10:41:57+00:00","dateModified":"2020-03-16T19:03:42+00:00","mainEntityOfPage":{"@id":"https:\/\/tacticalreviews.co.uk\/?p=3180"},"wordCount":703,"image":{"@id":"https:\/\/tacticalreviews.co.uk\/?p=3180#primaryimage"},"thumbnailUrl":"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-feature-P1320301.jpg","keywords":["d4","edc","emisar","emisar d4","flashlight","pocket rocket","review","tactical","tactical reviews","tacticalreviews","torch"],"articleSection":["Light Review"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/tacticalreviews.co.uk\/?p=3180","url":"https:\/\/tacticalreviews.co.uk\/?p=3180","name":"Performance Review: Emisar D4 - Quad Nichia 219C LED Light - TACTICAL REVIEWS","isPartOf":{"@id":"https:\/\/tacticalreviews.co.uk\/#website"},"primaryImageOfPage":{"@id":"https:\/\/tacticalreviews.co.uk\/?p=3180#primaryimage"},"image":{"@id":"https:\/\/tacticalreviews.co.uk\/?p=3180#primaryimage"},"thumbnailUrl":"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-feature-P1320301.jpg","datePublished":"2018-07-12T10:41:57+00:00","dateModified":"2020-03-16T19:03:42+00:00","author":{"@id":"https:\/\/tacticalreviews.co.uk\/#\/schema\/person\/50b1ef6ccf80fc887678a34d7acd67c5"},"breadcrumb":{"@id":"https:\/\/tacticalreviews.co.uk\/?p=3180#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/tacticalreviews.co.uk\/?p=3180"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/tacticalreviews.co.uk\/?p=3180#primaryimage","url":"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-feature-P1320301.jpg","contentUrl":"https:\/\/tacticalreviews.co.uk\/wp\/wp-content\/uploads\/2018\/07\/00-Emisar-D4-feature-P1320301.jpg","width":800,"height":596},{"@type":"BreadcrumbList","@id":"https:\/\/tacticalreviews.co.uk\/?p=3180#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/tacticalreviews.co.uk\/"},{"@type":"ListItem","position":2,"name":"Performance Review: Emisar D4 &#8211; Quad Nichia 219C LED Light"}]},{"@type":"WebSite","@id":"https:\/\/tacticalreviews.co.uk\/#website","url":"https:\/\/tacticalreviews.co.uk\/","name":"TACTICAL REVIEWS","description":"Reviews of EDC gear, lights, knives, tools and more","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/tacticalreviews.co.uk\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/tacticalreviews.co.uk\/#\/schema\/person\/50b1ef6ccf80fc887678a34d7acd67c5","name":"Subwoofer","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/secure.gravatar.com\/avatar\/9df2acef896ef972c9afb9305eb69c08d58881d9260039e537c074c77889df86?s=96&d=mm&r=pg","url":"https:\/\/secure.gravatar.com\/avatar\/9df2acef896ef972c9afb9305eb69c08d58881d9260039e537c074c77889df86?s=96&d=mm&r=pg","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/9df2acef896ef972c9afb9305eb69c08d58881d9260039e537c074c77889df86?s=96&d=mm&r=pg","caption":"Subwoofer"},"url":"https:\/\/tacticalreviews.co.uk\/?author=1"}]}},"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pcNKU5-Pi","jetpack-related-posts":[{"id":5546,"url":"https:\/\/tacticalreviews.co.uk\/?p=5546","url_meta":{"origin":3180,"position":0},"title":"Light Review: ACEBEAM UC15 &#8211; EDC \/ Keychain","author":"Subwoofer","date":"24 July, 2018","format":false,"excerpt":"ACEBEAM's UC15 is a new contender in the keychain light market. 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