I made a quad 21700 flashlight:
- Host from Kaidomain
- Nichia 219B 2700K LEDs from azhu
- Spacer and optic from MTN
- Driver and lighted switch from Convoy
The host was different than what I was expecting since the reflector was shorter than the 21700 black host that I bought previously from Kaidomain. So I had to shorten the S2 spacer much more than anticipated and could’ve just bought the shorter S2+ spacer if I had known. The spacer went from 13.4 to just 3.9 mm.
I also had to make the quad optic a little smaller so I sanded down the parameter to make it fit into the head. That then made the LEDs to align perfectly into the head.
For the lighted tail switch, I found some purple 0805 LEDs on eBay and added them to the blue LEDs that came with the Convoy switch. That made a very unique dark purple color which draws 0.15 mA (3.8 years).
