Slimmer than a Bullfrog and more powerful than a Gekko, the Skink has 4 LEDs for just the right amount of illumination for your ride. Compact silicon body protects the Skink from the elementsFive flashing modes plus constant onNew circuitry and 4 super-bright LEDs Fits around any handlebar, seatpost, frame tube, etc.Includes battery life indicator, a small LED next to the switch that comes on when batteries are at 25% charge 2 AAA Batteries includedWeighs in at 56 gramsItem SpecificationsWeight56gBattery2 AAABulb4 LEDRun Time220 hours