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Showing 1 of 4 conversations about:
Folomov 18650S 960 Lumen 5000K LED Flashlight
toddcshoe
16
Apr 12, 2019
It's a decent light. Super small for a 18650 light. The driver being in the tail cap allows it to be very compact. The first batch of these had problems. The driver was overdriving the emitter and it was turning blue and getting wickedly hot. Outright dangerous really. It seems they have revised the driver. I have one of the newer ones now with the new driver and it works like a champ.
SteveG
3
Apr 16, 2019
toddcshoeIf the driver was pushing less current through the 219D, the output would be lower.
toddcshoe
16
Apr 17, 2019
SteveGNot necessarily. Once the current gets to exceed what the emitter can handle then it all turns to heat and a life shortened and ugly tinted emitter. So if the emitter hits it's max brightness at 2amps and you drive it with 3amps. You are going to get lots of heat and weird things happening to the emitter. If you redesign the driver to only deliver the 2 amps it needs it gets just as bright but without all the heat and side affects of being over driven.
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