Thing that I found important in lights is the steady output thingy...
The 1 watt Giant was doing ok initially with some 1.5v toss away alcalines... then it was gradually dropping output until it went pretty dim for hours and practically useless.
So I went for some flat discharge curve GP Recyco which were another few moneyz. Finally got a pair of Sanyo Eneloop for the rear one (10 eurozzz a pair...
) and I lost them with the light...
You can get a lot more voltage from Lithium from smaller battery pack in the expence of shorter run time and occasional explosions.
But the Lezyne ones say that their Above - Al Quada Bomb Grade - Circuitry
has:
-Steady output.
-Battery life protection. (Not allowing the light to discharge the battery to levels damaging its service life recharge cycle numbers or something).
I would love to get a pair with replaceable batteries but they were about 50% more expensive and I got one on sale too...
Doubt that the 1000000 Chinese Lumen ones have that sophistication in their circuit and they are still not that cheap anyway...
Plus it's nice to not be wasteful, especially when it comes to batteries.
DIY might cut it between servicability, performance and price compared to these Ali-Bay Chinese lights in the long run, might...
Plus I don't e-shop if I can help it.
"Your can't miss! - Just what you see pal.
"
https://www.youtube.com/watch?v=BdjdpoqITXk