I think it is worth noting (for those who are not familiar with bike lighting), that if you are commuting only on familiar paths you do not an 800 lumen light source. I recently purchased a 3 pack of LED flashlights from Costco for 20 bucks. Supposedly 150 lumens each. Not an exaggerated claim. They have 50% and strobe capabilities as well. I have yet to mount them to my handlebars, but two of these running at 50% will be more than adequate for familiar areas while providing good battery life as well (run on AAAs). I am very pleased with the output. As for durability...time will tell. (I understand some reviews for these lights said they ate batteries even when not in use because the switch on the back glows. The ones I got do not have that feature so I'm hoping this is an improved version. At this price...well worth a shot.) I'm not saying people don't need more light than this. I'm just saying don't think you need to go buy a 1000 lumen light for your daily 3 mile ride home on a path you could ride with your eyes closed. Just advice for people who have never bought a bike light before (like myself). Just wanted to share my experience.