EasyB
January 28, 2017, 9:06pm
7
These tests show the dedomed XPE2 and XPG2 will give similar throw numbers. And as mentioned above, the XPG2 has significantly more area and lumen output.
Some time ago I did a Uniquefire UF-T20 mod with a dedomed XP-G2 R5 (3C-tint) led on a Sinkpad at 2.95A (measured tailcap). I wanted to make a similar second pill for this light (using a 'C8 pill ' obtained from Fasttech) with a dedomed XP-E2 R3 (1D-tint) led on a Sinkpad at 2.4A (measured tailcap), so I could make a direct comparison. (There is no gain in driving the XP-E2 any harder than at 2.4A)
Let's do the math first.
Using the famous emitter test results done by match , the emitter output …
The new XPG2 does give lower throw numbers, but lots of them are within ~15% of the old style XPG2, so I would not consider them terrible. For example:
A bit late to the game… also just my findings. I’ve built 3 identical C8s with the following LEDs
Dedomed XP-G2 S4 2B (Old Production) - 197 297cd [888m]
Dedomed XP-G2 S4 2B (New Production) - 170 393cd [825m] [13.63% drop in cd]
Dedomed XP-G2 S3 3D (Old Production) - 188 329cd [867] [4.54% drop in cd]
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The dedomed old production S4s does have an Awesome tint, that is, for hunting purposes, with its hint of green. I’d say the tint shift after dedome is something in th…