Just finished a few videos about the build of a simple light that I assembled called The Miner.
The build is very simple and I believe it can be achieved by a lot of people and doesn’t require complex or hard to get tools.
The main reason is because it’s intended to use low power leds and thus, the housing doesn’t need to be metallic since there isn't that much heat to dissipate.
The final result is a unit that is very light, small, has a good run time ( about 6 hours with a 250l R2 ), it’s cheap and it’s easy to build. It has a good throw and it's perfect for a helmet light.
Parts and tools list and a few more photos:
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