Last night I tried a couple more LED setups in my FW3A
Triple LH351D 90 CRI 4000K - I was not impressed. As expected, due to the floody emitter the hotspot was much bigger, but with much less intensity than XPL HI. Ultimately I decided LH351D was simply too floody and quickly swapped it back out of the light.
Triple XPL HI - composed of two 4000K 5D and one 5000K 3D. Much better. I also added Lee 279 minus green filter for even better tint.
I got impatient, so I modded a FW3A XP-L HI to use 219B instead. It’s a sw45k triple now, and it’ll probably be my daily carry light for a long time… because FW3A is my favorite light and it’s awfully hard to beat 219B for tint and general beam quality.
Overall output is very close to what Bob posted… but mine is about 3% lower because all my measurements are about 3% lower than his. I think we jut have slightly different calibration on our integrating devices.
Moon: 0.1 lm
1x7135: 93.5 lm
8x7135: 622 lm
FET: 1384 lm (with a 4.0V cell)
This is measured with a tube calibrated to match some reference lights from maukka, so I think it’s probably pretty close to accurate. It’s nice that the variation between people’s measurements is so small now, instead of being as much as 50% off like things were a few years ago.
Anyway, for the time being, I basically optimized my EDC light to taste as much as possible. Time to go work on something else, I guess.
Yes it is! I’ve been using it for years for reflows, dedoming, etc. When I was a young teenager I would use it to tie fly hooks but haven’t for many years.