Red Flashlights

[jon_slider]

there is also an xp-g3 660nm

they all work just as well… grab whichever one is handy

more info:

Cree XP-G3 Photo Red 660nm bare LED

-If you take LED efficiency into account,5700k xp-e2 gets at most 140lm/W. Photo red LED wall plug efficiency is 55%60%, so you get 550-600mW/W, at 40lm/W from 660nm that’s 22-24lm/W, the eye is just not very sensitive to photo red. Edit: actually djozz got over 50lm/W, 122lm at 1A with the XP-G3. There is a >15% improvement in radiant output from XP-E2 to XP-G3 but I think the main difference from my theorical calculations may be the 645nm dominant wavelength, the eye is twice as sensitive at …

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