The Xtralite LED Desk Lamp boasts a powerful 180 lumen flicker free bright white LED light that replicates daylight at 5000k. With the LEDs having a longer lifespan than the standard fluorescent bulbs you will save time and money without having to purchase new bulbs. As there is no UV rays from the LEDs it reduces eye fatigue that can otherwise be caused by standard lamps. It is powered by a Micro USB cable that can either be plugged into any USB output device or with a compatible USB wall socket charger (not included). With a touch sensitive ON/OFF button that glows green when the light is OFF, you will not have to worry about being left in the dark ever again.