The Ion 50 R / Flare R Metro Bike Light Set is a simple USB rechargeable front and rear cycling light set that can help you be seen after dark. The versatile design and included bike mount make for easy, tool-free attachment to any bike. Remove the included mount to reveal a built-in clip that securely attaches to a belt clip, pocket, or bag. Ion 50 R & Flare R Metro Bike Light Set Features 50 Lumens front and 20 Lumens rear help make riders more visible after dark Triple LED design can be seen from a wide visibility angle Versatile design can be mounted on bike, belt, or bag Each light has two steady modes and one flash mode Ion 50 R - Low steady 20L-3hrs, high steady 50L-1.5hrs, Flash 50L-6 hrs Flare R Metro - Low steady 8L-3 hrs, high steady 20L-1.5hrs, Flash 20L-6 hrs Includes Ion 50 R, Flare R Metro, Clip Connect Mounts, and Micro USB cable Integrated clip for secure install on belt or bag, simply remove the mount to access Ion 50 R & Flare R Metro Bike Light Set Specs Battery Li-Ion 250mAh 3.7 Volt Rechargeable Micro-USB Charge Time 1.5 hours Waterproof Rating IPX4 Wireless Compatibility Not Compatible Weight 80 grams (set), 40 grams (each light)