Specifications: Light Color: Red, Blue 6 Modes: High/Medium/Low/50% Flashling/SOS/Strobe Type LED Rating: 1 s/n LED Water Resistant: IPX6 Internal Lithium Battery: 3.7V, 650mAH Product Dimensions (L x W x H): 7.1 * 2.1 * 2.2 cm Automotive part position Front, Rear International protection rating IPX6 About this item 6 Lighting Modes: Super Bright Static Red Light, Normal Bright Static Red Light, Static Blue Light, Fast Flashing Red Light, Slow Flashing Red Light, Blue Flashing Red Light IPX6 Grade Waterproof Upgrade: Keeps the lights perfectly on when riding in heavy rain without a problem USB Rechargeable Bike Taillight: With a USB port, it allows the bike light to be charged from your computer or any device with 5V 1A max. Super bright: the super bright LED ux s/n reaches 200 Lumens, this bike taillight protects you when riding Long runtime: shines for up to 6-15 hours with the two-hour charge (the hour of operation depends on the selected light mode)