Acebeam L19V2 (SFT40) was made with boost driver and it is a very efficient light so I think it can sustain high output as long as the heat is well managed.
Room and light temperature was at 24C (75.2F), I hit turbo and fan on at the same time. Temp increased slowly, reached around 31C (87.8F), fluctuating about 1C around that temp mark. At 27 minutes, the fan ran out of battery (so in 27 minutes, the light keep turbo without any drop in brightness and always stay cool under 32C), temp increased quickly and at 32 minutes without fan, the temp reached 37C (98.6) and the battery indicator turned red, which means the battery is below 30% (I use the Acebeam cell that comes with the light).
Next, the combo flood and spill from Gemini and Thor mini. I thought combine 2 unpractical flashlight light would make a practical flashlight. I was wrong. Way too heavy for its size and poor performance due to bad heat dissipation. Anyway, 2 badass little light.
by thanhman97
1 Comment
There may be some misunderstanding here. As a single cell 3V emitter thrower, it cannot use a boost driver. The biggest probability is only a buck driver. Buck+Boost driver exists in theory, but there is no evidence that l19v2 uses it.