Yes there is very visible PWM on low when you swing fast the flashlight. For battery I managed to work with flat 14500 maybe because the contact with battery was not very good. You are also lucky, my driver is very pitchty and I can hear it from 1m.
Yes there is very visible PWM on low when you swing fast the flashlight. For battery I managed to work with flat 14500 maybe because the contact with battery was not very good. You are also lucky, my driver is very pitchty and I can hear it from 1m.