The only 500m bit can be fixed.
Type: Posts; User: gadgetman
The only 500m bit can be fixed.
One thing to be aware of is two 18650's side by side will need a 36mm tube but a D cell is only 32mm diameter and shorter so not that easy to fit. Honestly the best advice is bin it and get a new...
Pretty much all LED lights are run with a constant current output circuit board. Depends on what that circuit board can handle as far as input voltage. Some will only accept 4.2V, some 8.4V, a few...