The Core SWX Bolt Battery Kit consists of a 7.2v lithium-ion battery and a travel charger. Designed specifically for the TL-BT200 LED light, the battery has a 6600mAh capacity and will power your light for up to 2 hours. Equipped also with a Sony InfoLithium microchip, the battery can be used to power Sony camcorders that accept L-Series batteries.