Featuring new cob led technology the ct3515 rechargeable work light unleashes a flood of light illuminating any work area with 1100 lumens of light on high and 550 lumens on low construction grade aluminum bumper guards and a heat sink combine to make this is one seriously tough light a 65 hour ct3515 rechargeable lithium ion battery means that theres a good chance youll wear out before the battery does while the battery charge level indicator button makes it easy to check remaining bat