Features1Quick installation and easy to use. 264pcs super bright 5050 color LEDs with water resistant plastic shell. 3Compatible with all languages that can be edited on computer. 4Runs on one rechargeable 950mAH batteries and can work 8-9 hours continuously. 5Speed requirement at 15km/h (5mile/h). 6User can program or import total 21 kinds of pictures or words into the light by software, support picture format: JPG, PNG, BMP. 7Manual power on and automatic power off: the light will get into standby mode in one minute after the wheel stops and will shut off automatically in 5 minutes after the wheel stops to save power.SpecificationGreat for advertising, daily commuters, casual riders, festival attendees and anyone who wants to have fun and be seen after dark.Features:Quick installation and easy to use.64pcs super bright 5050 color LEDs with water resistant plastic shell.Compatible with all languages that can be edited on computer.Runs on one rechargeable 950mAH batteries and can work 8-9 hours continuously.Speed requirement at 15km/h (5mile/h).User can program or import total 21 kinds of pictures or words into the light by software, support picture format: JPG, PNG, BMP.Manual power on and automatic power off: the light will get into standby mode in one minute after the wheel stops and will shut off automatically in 5 minutes after the wheel stops to save power.Specification:Material: ABS+PCLED QTY: 64Battery: 1 * 950mAH rechargeable Li-battery (included)Applicable bike: Wheels no smaller than 26"Lamp Size: 50 * 3 * 2cm / 20.0 * 1.2 * 0.8inWeight: 173g / 6.1ozPackage List:1 * Spoke Light1 * Sensor1 * Battery1 * USB Cable1 * User Manual1 * Set of Assembling PartsPackage List1 * Spoke Light1 * Sensor1 * Battery1 * USB Cable1 * User Manual1 * Set of Assembling Parts