This compact USB mains charger is ideal for charging and powering all of your USB devices such as smartphones, tablets and digital cameras that require up to 2.1A. USB devices have different power needs, depending on what they do. For example: Low-power devices, small lamps, keyboards or mice, use very little energy and can run on minimal USB power (like from a computer's USB port). High-power devices, such as larger USB lamps, external hard drives or phones, need more energy to function or charge quickly. They require stronger power supplies, such as USB chargers designed to output more power (measured in watts). If a device doesn’t get enough power, it might not work properly or charge slowly. That’s why USB power supplies come in different power levels to match the needs of different devices. Attractive gloss white finishSingle USB port with an output of 2.1AIdeal for charging all your USB devicesUSB power2.1ADimensions50 x 50 x 45mmWeight49gPower : input100-240Vac, 50/60Hz