Features: -Versatile bike gadget: Cycling, Camping and Outdoor Activities. -Perfect Size for Most Bicycles with Fashionable Design. -The Latest Focused and Even Light Technology. -4 Control Switch Modes Including Strong, Medium, Weak and Flash. -Heat-Sink Structure Efficiently Promotes LED to Give Out Max. Light Output. -100- Meter Visibility and Cycling Safely. -Built-in NP-60 with 1200mA Rechargeable Battery. -Smart USB Charging Design. -Low Power Consumption. -Water Resistant Housing -Quick Release Brackets. -Dimension: 10.5x 4.4 x 2.9 (CM) with 150g only. 20PCS Per Carton