Lighting coverage up to 240 ° – Compatible with aero seat tube – 5 functions: Hi-Beam, Low Beam, Flashing 1, Flashing 2, Pulsating – 25 lumen brightness – COB LED light source – Can be mounted without tools – Battery level indicator included – Lithium-ion polymer battery (300 mAh) – Dimensions: 79,5mm x 29mm x 30 mm – Weight: 31 g