Any idea of Firefly/Lightning Bug output?
Can see them near neighbors Chicken House which is over 1/4 mile away.
Tint= 2000K maybe?
Lots of them now, think it may be the peak season here in southeast PA.
What a fun question! I’d love a flashlight with that tint.
I searched for just a few minutes and found two different answers.
This page says the ‘Photinus pyralis’ or ‘common eastern firefly’ emits about 1/40 foot-candles. 1 foot-candle = 1 lumen/square foot.
This page references a 1929 research paper that specifies another luminous beetle as emitting 0.0006 lumens.
I’d say 0.0006 seems a bit low. Some of my ZebraLights go to 0.01 lumens and a lightning bug certainly seems brighter than that.
I was gonna say “an assload”, but…
Leave it to Lightbringer
That’s the technical term for it! 
Lightning bugs use their light to attract mates, but my flashlight collection doesn’t do much for my wife. 
You need a touch of pheromone with that light… lol
There are about 5000 lighting bugs in my backyard tonight. They are competing with the fireworks!
I’d guess if you got enough of them together according to the math above (40 x 1000 = 4000 bugs) would get you 1000 lumens 
So that’s at least a “buttload” right Lightbringer? 
Have to guess that nature has Humans beat on technology in this case.
Those lightning bugs “Butt emitter” flashes thousands of times with a very small power supply, all our small batteries have horrible capacity.
Do not see how we could replicate a flying robot with light output that small that would operate for even an hour.
Yeah last night was very cool, so many Lightning bugs doing their thing while fireworks surrounded the valley. People really went all out this year to replace the commercial displays that were cancelled.
Weather was perfect as well.
Hope you all had a good 4th.
Later,
Keith
Guess the same happened here. No Macy*s fireworx this year, so every idiot and his grandmother went all-out with mortar-fire that it was like living in Lebanon in the ’80s.
Poor cats were terrified. Even my “outdoor cat” came inside even while new “indoor cat” is here, and they peacefully coexisted against an outside enemy (vs [both males] getting in each others’ face).
Aerial bursts, hey, great, but someone was setting off sticks of dynamite or something. Deep-bass blasts in the distance that shook the house…
Light looks amazing and driver seems excellent. Too bad the emitter is on the green side.
And PWM-rate is horribly slow and very visible…
i would guess about .01 to .1 lumens at peak butt-output
wle