The Bell 300 Lumen USB Light Set is perfect for the rider who wants to ??See and Be Seen?? in low light conditions. The headlight utilizes the latest in high lumen technology with advanced lens designs and reflector optics. Brighter LEDs light up the road ahead of you while the secondary diffused beam pattern makes you more visible to traffic and other riders. The USB 300 light set easily installs without tools and the silicone strap makes it so the lights fit almost any size handlebar or seat post. The high-powered headlight and tail light offer 3 modes . steady . flash and strobe.