Couple years ago I bought a Niterider 350 bicycle light. The thing really lights things up. They make more powerful models to include a 1400 and a 700, why you'd want more than the 350 is beyond me. I recently had either a battery or charging unit problem. I called Niterider and they said send it in. Week or so later I'm back in business---great customer support. I also have Niterider tail lights and they are very bright and work great.