Specification: Product name: BLF X6 X5 Astrolux S2 S3 SS SC Driver Voltage:2.8-4.35v Diameter: 17mm Model: ATTiny 25V-based & FET+7135 Current: 4A-6A (depends on the battery you used. With full charged & high quality battery the current will be higher.) Modes: Suit for: BLF X6/X5 Flashlight & Astrolux SC/SS/S2/S3 Package included:1 x BLF X6 X5 Astrolux S2 S3 SS SC Driver For more information about how to operate the driver, please click here: BLF X6/X5 Driver