Upcoming Astrolux S42 18350/18650 quad w side button and usb charging

LED Flashlights – General Info
148

The driver isn’t very efficient.

Here’s High 2 on a VTC6 (10.8 Wh) with 48 lm/W on average over the run. For comparison, a Thrunite TC12 V2 with a single 219C CRI90 at similar output gets 78 lm/W.

[Review] Astrolux S42 4xNichia 219C Rechargeable Mini LED Flashlight supplied by Banggood