–Then do you think it is necessary to design the tailcap to be magnetic?
“Stabilized driver, which means constant current regulated driver buck or boost.”
– then I think you can keep an eye on our HS42! 
–If a headlamp is used as a work tool, a simple UI seems to be a must. For light source switching, it is more convenient to just click + click and hold.
–HCRI LEDs generally provide warm light. What do you think of headlights equipped with red light?
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