Sportsun LED Bike Light Set, Bike Headlight and Taillight Combination, USB Rechargeable, 2 Pack (Includes USB Cable) Features a flexible mounting bracket for easy installation Made from durable aluminum with good thermal conductivity for a long time use Integrated design with a sealant to ensure excellent performance on rainy days 4 light setting including strong, weak, slow flash, strobe for a variety of situations Powered by rechargeable 2 650 MAH battery; USB cable is included