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I’m a coyote hunter. I have a red torch light for the gun. Sometimes when using it the light will blink and then get dim. If I turn it off and back on it will work again for a short time then do the same. If I don’t use it for awhile…it’ll be good for awhile. Is this a heat related issue?

Thanks for any input!

Jim

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Have you tried another battery?

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Yeah, could be anything: switch, emitter, driver, battery, etc.

Just gotta play Columbo and vary one thing at a time 'til the problem goes away. Then concentrate on the Bad Thing.

Also, if you use a remote switch, those damned things use microthin telephone cable half the time.

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Thanks Lightbringer. I don’t use a remote switch. So at least thats one of a half dozen out of the way!

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Tailcap switch? Remove, short (-) end of the cell to the exposed edge on the battery tube, see what happens.

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Lights up no problem. Something tells me I need a heat sink of some sort. Its a T20/C8 host so its a screw in pill. So not sure how to heat sink a pill. I’m liking the brass P60 dropins out there…at least I can then put copper tape on to further heat sink.

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What driver is in the flashlight? Does it have thermal protection? Maybe it’s cutting back on the current when it gets too hot.

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I believe it does have thermal protection.

  • Qlite @ 2.2A - 1 mode (high)
  • 16mm Red XP-E2 on 16mm Noctigon

The light will blink a couple times and then get dimmer. Which based on what you said its likely cutting back on the current which is why it gets dimmer.

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