Compact LED bicycle lamp with USB charging StVZO approved, light output: 140 lumens white LED or 10 lumen red LED front light with side visibility, housing surface with soft touch rubber coating made of TPU, integrated lithium-polymer battery with built-in USB charging plug, charging level/low battery indicator, 1 light modes (front and rear), burning time: 2.5 hours (front), 3.5 hours (rear), tool-free 1 00% waterproof. Weight: 65 g (front), 30 g (back)