Travel Inspira LLHI-CV1000-BC LED Desk Lamps Lights with Clamp-on Base Piano, Black 2 desk lamp bases for option --- 1 square lamp base for putting on the desk and 1 clamp-on base for fixing on the edge of your desk, bed or whatever places as you like Non-flickering natural light without producing dangerous heat. Brightest setting output 530Lm; maximum power consumption 14 watt, 50000 hours of lamp life 4 modes with 5 level brightness control, warm and cold color temperature adjustment Usb port for smart phones, iPad and iPhone. 1 hour auto off timer; with dc adapter compatible 100-220 voltage; Foldable space saving design. Flexible positioning of rotating led light head directs the light out of your eyes while reading