The USB (Universal Serial Bus) Rechargeable Rapid X provides a bright, powerful glow with incredible side visibility. When the battery runs low, the low battery “ Auto Save” function automatically changes the light pattern from the current mode to flashing, providing an additional hour of riding safety. 6 modes. 2 Hour charge time. Click here for The Rapid X Manual Specifications
Dimensions 74.2 x 24.4 x 30.8mm/td> Weight 22.5 grams (light unit & battery) Light Source & Mode Run Time COB LED Battery Lithium Polymer rechargeable battery Run Time High Mode: 1 Hours Low Mode: 5 Hours Flashing Mode: 30 Hours Rapid Mode: 16 Hours Pulse Mode: 16 Hours Vibration Mode: 8 Hours Recharge Time 2 Hours (USB 2.0) Mount Size Rubber band mount (fits φ 12.0-32.0mm) Other Battery auto save, Low battery indicator, Lighting mode memory