I PM'd Acebeam and they verified that the 34 gram weight given in their description of the H40 is for the flashlight only - not the headband or battery. So I made a gross error stating that the TH20 is more than twice the weight of the HC40. Sorry if I misled anyone into making a purchase of the H40 based on my mistake. I screwed up.
In a separate PM,. AceBeam answered my question about the type of regulation used for the H40. It's "constant current."
I have to say that I am impressed at the quick turn around I got from AceBeam on my twp PMs. Looking forward to the arrival of my H40. I will probably end up running it with a Ni-MH battery.
Your assumption of my never having a headlamp has failed you. I have headlamps. Not this particular one but, I have a few. I don’t have a AA/14500 headlamp. Might use them more often if they didn’t feel like I actually strapped a 18650 light to my forehead. So my sentence of, “I don’t even need a headlamp” did in no way convey that I never had or currently have one.
The first thing I did after unboxing my H40 today was weight it on my kitchen scale. The flashlight (sans battery) weighted 37 grams, and the headband weighted 45 grams - for a total of 85 grams.
The headband is very beefy and hold the flashlight well. I've only worn the assembly a couple of minutes, but the flashlight seems almost unnoticeable on my forehead - which is going to work well for me.
Sorry to hear that. Hope that the turbo output makes up for it. I must have lucked out on the Thrunite TH20 and chose a different LED (if there was a choice) as It isn’t bad. Anything else that you don’t like?
(Brainsick)“…Yeah it blows, might get the SST20 Version…”
I’m unsure that the SST20 version is any big deal to the budget community at large given little to no LED specific video that I can find describing that light in detail to date. There must be a good number of single AA higher CRI/throwy headlamps out there with infinitely adjustable current generation LEDs fitting protected batteries from a well known manufacturer for $30 delivered.