Cree XP-G3 Photo Red 660nm bare LED

another data point
2019 RRT-01 with stock XP-L LED on 16340
500 lumens on my meter (NOT the 950 spec)

with Red 620nm LED
250 lumens on my meter

more info in this thread, including about the difference in how a light meter reads red

note I am not adjusting my meter readings for Red, Im just reporting what the meter says.

a case could be made that 250 red lumens equals 405 white lumens (1.62 factor)


another data point, using AA eneloop:

when I had a 620nm Red XP-E2 in the T10T the 3rd mode was 20 lumens on my meter

now with 660nm Red XP-E2 in the T10T, the 3rd mode is 17.4 lumens, a drop of 13%…