Litup USB Adapter Wall Charger Travel Adapter for Litup Light boxes (LP3-USB/LP-B4/LPS4/LPS5/LPB3/Huion L4S) Work with all light pads light boxes with USB port. Can work with Litup LP3-USB, LP-B4,LPS4, LPS5 and Huion L4S as well. Input: 100-240V, 50-60Hz, 0.35A Output: 5.0V, 2.0A NoteLitup USB adapter cannot be used in LP2, LP3, LP4 which come with power supply. Compatible with any USB enabled devices. It can also use as a smartphone charger.