You don’t need it to be 1 cm thick to not be a bottleneck. 5 mm would be overkill already.
Wrong and right. Thermal path has little to do with sustained performance. Larger surface is a biggie. What matters is ability to evacuate heat out of the light. So conduction to user hand, convection from the body and radiation from the body.
Strictly speaking better thermal path makes the led run cooler. And cooler means more efficient. And more efficient means better sustained performance. But that’s purely marginal.
Thanks. I’ll have to re-check that. You’d think that any required fields would be highlighted if not selected, rather than simply preventing the “Add to Cart” button from functioning.
Default ceiling is 120 (click 31 times after prompt). Max ceiling (= turbo) is 150 (1 click after prompt). Not sure what level default floor is set to, but lowest possible setting is 1 click after prompt.
I received my Fireflies E07 Friday of last week and it has a strange issue that my Fireflies PL47 has never had:
I will take a video to show you what’s happening but when I ramp up to the top of the ramp (not turbo) the light flickers very heavily and rapidly once it reaches the top of the ramp. This happens if I keep holding the button or if I release the button as soon as it reaches the top of the ramp. The flickering happens most of the time and can last anywhere from 2 - 10 seconds.
It also happens if I save the top of the ramp setting as the memory setting and turn the light off then on again.
Like I said, my PL47 doesn’t have this issue and is totally stable once it reaches the top of the ramp
Get some 80-90% alcohol and clean any copper parts or non anodized metal (driver ring, tail pcb ring, springs, battery tube ends and finally your battery + and - terminal)
I receveid my E07 from fireflies webshop, clear anodize, Nichia 219B
Everything is perfect, it’s now my favorite flashlight.
I already have a ROT66 and PL47, everything buy from fireflies website and with Nichia 219B
Nichia 219B is my all time favorite LED for long exposure photography (light painting), it’s great to have 3 flashlights with the same LEDs
Thanks… cleaned it all and it turned out to be the female tailcap. basically turned a tissue jet black after cleaning and she’s functioning tip top now.
Still… I’m kind of surprised I had to thoroughly clean my 3 day old light… lol
It’s pretty easy to transfer stuff to/from batteries, your fingers, grease from threads, oxidation, etc. Your other lights might be dirty too and if they are lower power or different type of driver the problem could manifest itself differently or not at all. I just clean them no matter what. Some people also re-do the grease or apply a thin layer or stuff like this: