The Lezyne Femto Drive Rear light is designed as an affordable yet brilliant compact ''be seen'' Commute / Road / MTB safety rear light. Engineered alloy body is light weight (31g with strap) & tough with long lasting, high polished & anodised finish. Five settings, including innovative ''orbing'' mode are controlled by pressing the actual lens which acts as a large & easy to use button even in winter gloves. New ''hipster'' easy-fit bracket with patented durable rubber strap fits the bike, your belt, clothing, bags, seatpack, just about anywhere you like. enhanced side visibility custom frosted lens delivers 180 degrees beam visibility. Internal reflector boosts output. Easy entry battery replacement is fully water resistant (FL1 standard).