Bicycle Rear Light, Bike Taillight Usb Rechargeable Cob Led Rear Bike Lamp, Multi *lighting Modes, Shockproof Waterproof(black) The product is shipped based on the color or size of the main image of the product page. Description [Waterproof and IPX4 Service] Super lightweight and small in size, take it anywhere you go. This lamp is rain resistant (IPX4 rating). 24 hours customer service + QC team quality checking before shipping + within fast transportation[6 LIGHTING MODES] Low, Standard, High, 50% Flashing, 100% Flashing, and SOS. Just need to press the button to choose the mode you like. It meets all your needs in different situations[High Brightness] With the 120 lumens in high quality, ideal for travel, excursion, fishing or the other outdoor activities of the bicycle, it is better to use it in the night (240 viewing angle)[Long Lifespan] Electromagnetic technology with long lifespan and just need 2 hours charging time and the fully charged automatic cut *off system, which allows you to use it for a long time[Easy Installation] The bike taillight in seconds with a rubber strap, it can be used on the bike but also on the helmet or backpack etc, no tools required. It fits for most bicycle handlebars within 12 *34mm in diameter