Beam n Read USB/AC Power Kit Save batteries by plugging your Beam n Read LED Light into external power sources Includes cube-style USB/AC power adapter (input 120/240v AC, output: DC 5v, 1 Amp) Includes 6 foot BnR-to-USB cable plus a 6 ft USB extension cable for total 12 feet Can also be used with USB sockets in car adapters, computers, on planes, etc. For all Beam n Read LED Lights (not for "Classic" filament bulb lights)