That’s exactly the idea behind [Jeremy Cook]’s latest build — it’s an automatic bike light that detects vibration and lights up some LEDs in response. The build is pretty simple — a coin ...

He has no trouble lighting his path with this 1300 Lumen bike light he built. The light source is a 3-up star by Cree. It puts off a lot of light, but also generates quite a bit of heat which is ...

That said, the light unit itself is fairly bulky ... over his motorcycles or trying not to kill himself on a mountain bike/surfboard/other extreme thing. He's also a man who knows his tools ...