I want a simple, cheap on/off AAA light with a good pocket clip with an emitter capable of fairly high output that won’t fail immediately if I put a 10440 in it. The Coast G19 looks like it fits the bill, but I want to see if anybody has tried this or knows whether it has circuitry that will react poorly to the extra voltage before I buy one.
Yes, I’m well aware that running it for more than a minute or so on a 10440 could generate enough heat to damage the emitter (or, for that matter, the user’s hand).
No guarantees, but since I have an old Coast G10 that’s still on a keychain that I don’t carry much anymore, I figured I’d try a 10440 in there (normally I’d have an alk AAA), and it works fine. I have to say that the G10 seems a bit brighter, but it’s not as huge a difference as I was expecting.
I’m not sure what emitter the G10 has. The G19 has an XPG R5, which seems to put out around a sustained 180lm or so in other lights running 10440s. Higher levels have been measured briefly, but the batteries can’t keep up for very long. It also appears that Trustfire and Ultrafire 10440s have very poor performance and may not deliver impressive results.