DescriptionLED headlight and taillights provide bike riders most reliable light up to 650ft away and 100ft distance. The bike light set is designed as compact but powerful, with quick release system the light set mounts on and off very quickly and efficiently. This item is powred by 18650 lithium battery or three AAA batteries.Features- Color: Black. - Material: Aviation aluminum. - Size: About 13.6 * 4 cm(L*W). - This item is powred by 18650 lithium battery or three AAA batteries. - headlight and taillights have multi lighting modes, which can be changed based on conditions of ambient brightness and motion. - The bike light set can be used in any type of weather including in the rain, snow, storm or any emergency, this perfect light set will you to continue your exploration. - Many riders enjoy several hours or longer riding time every day, but the risk of an accident is always there at night. The light set provides the most durable and powerful lights for safe riding in every condition.