lampeDépêche
Flashlight Enthusiast
- Joined
- May 15, 2012
- Messages
- 1,241
Okay -- got some 14500s, tried it with a H503 (the pure flood version) and can confirm full function.
Can also confirm the strange step-down glitch when first using an AA after the Li-Ion, as well as the fix via a single click when the battery tube is empty.
(I imagine that there's a register in the driver which keeps track of the battery voltage. After you run it on a 3.7v cell, it is expecting that the next cell will also be a 3.7v. So, when you put in a 1.5v or lower, it says, "whoa, this 3.7v cell is dangerously depleted! I'd better shut down, since it's below the minimum safe voltage level for a Li-Ion cell!")
Did some quick checking with an (amateurish) phone-app lux meter to verify that the output on H1 with the 14500 is a bit over twice the output on H1 with an AA. Really bright! Since the published H1 for this unit (the LH351D) is 264 lumens, I think it's safe to say that this is putting out over 500 lumens. The rest of the lower modes (M1 and M2, L1 and L2) all same as with AA -- so you do not sacrifice the crucial moon-modes.
The body on the H503 is really insubstantial -- very small, very light, hardly any mass. So, it cannot take much heat for very long. Personally, I'm glad that it has the 60 sec time-out. Otherwise, I fear it would just fry itself.
Can also confirm the strange step-down glitch when first using an AA after the Li-Ion, as well as the fix via a single click when the battery tube is empty.
(I imagine that there's a register in the driver which keeps track of the battery voltage. After you run it on a 3.7v cell, it is expecting that the next cell will also be a 3.7v. So, when you put in a 1.5v or lower, it says, "whoa, this 3.7v cell is dangerously depleted! I'd better shut down, since it's below the minimum safe voltage level for a Li-Ion cell!")
Did some quick checking with an (amateurish) phone-app lux meter to verify that the output on H1 with the 14500 is a bit over twice the output on H1 with an AA. Really bright! Since the published H1 for this unit (the LH351D) is 264 lumens, I think it's safe to say that this is putting out over 500 lumens. The rest of the lower modes (M1 and M2, L1 and L2) all same as with AA -- so you do not sacrifice the crucial moon-modes.
The body on the H503 is really insubstantial -- very small, very light, hardly any mass. So, it cannot take much heat for very long. Personally, I'm glad that it has the 60 sec time-out. Otherwise, I fear it would just fry itself.