Innovative onboard microprocessor technology allows the TL10 Task Light to work with all IQv batteries from 7.2v through 19.2v, making it the perfect compliment to IQv Series cordless tools. The TL10 Task Light utilizes state of the art LED technology to provide amazing brightness, up to 50,000 hours bulb life, and optimal efficiency for up to 10 hours run time (with BL192).