Super Bright LED LightPhotondrop LED bicycle tail light uses high-brightness COB lamp beads, eye-catching flood warning, uniform light to keep you visible even in low-light conditions, and strong penetration. Ensures maximum visibility and safety when riding at night. Multiple lighting modesYou can choose between stable, flashing and pulsating modes and quickly switch with one button to adapt to different riding conditions. Unlike traditional flashing taillights, the light is flowing, like photons falling, softer and more beautiful. Rechargeable, long battery life The bicycle light is convenient, cost-effective, 300mAh battery, Type-C portable charging, and can be connected to a computer or power bank for charging. It can work continuously for 5 hours after being fully charged. Full charging time is approximately 40 minutes. Efficient power management system with long battery life for uninterrupted use during your riding adventures. Waterproof and Easy to InstallComes with rubber straps, tool-free installation, quick installation, suitable for most seatpost diameters. Daily waterproof, not afraid of rainy days. Notice! No protection against heavy rain and soaking! Perfect Cycling CompanionSize: 3.31*2.76*0.71inch Superior LED technology ensures long-lasting performance, while its lightweight design won't make you feel heavy. Enhance your road safety with this reliable, efficient LED bike light.