Specification:Product name: BLF X6 X5Astrolux S2 S3 SS SC DriverVoltage:2.8-4.35vModel:  ATTiny25V-based and FET+7135Current: 4A-6A  (depends on the battery you used.With full charged and high quality battery the current will be higher.)Modes:Suit for: BLF X6\/X5 Flashlight and Astrolux SC\/SS\/S2\/S3Package included:1 x BLF X6 X5Astrolux S2 S3 SS SC DriverFor more information about how to operate the driver、please click here: BLF X6\/X5 Driver