Lezyne 110 to 1000 lm Bicycle Headlights
About Lezyne - "Lezyne's mission is to create the most advanced and beautiful cycling products, ever. Bicycle hand pumps, floor pumps, digital pumps, shock pumps, multi-tools, tire repair, bags, bottle cages, CO2 inflators, tool kits, saddle bags, organizers, shop tools and more."
A lumen is a measure of the total "amount" of visible light emitted by a source. The higher the lumen rating, the brighter the light.