Reading Light USB Light Reading Tool Bedhead Tablet Book Clip Light Portable Reading Light Mini Night Light Features: five of brightness . Three colors -6000K white light; 3400K; Amber yellow 2000K 500mAh battery, with a range of 8-80H. Equipped with a charging indicator light, which illuminates red during charging. The fixture for holding the lamp can to 150 °; The lamp can be rotated to the left, right, and down at angles of 90 °, 90 °, and 45 °, respectively. USB head, can be charged directly without a data cable. Number of buttons -2. Top button, short press on/off, and adjust color; The following buttons, briefly press to adjust the brightness, there are a total of 5 brightness . Long press for 3 seconds, timed for 30 minutes (the light will flash before releasing the hand). Timing function - Press and hold the brightness adjustment button, the light flashes, and the timer is set for 30 minutes. Equipped with brightness memory function, but unable to remember the color you last, can remember the brightness gear. Each shutdown must go through a cycle (off warm white light white light white off) blue light, non glare, eye protection. Silent, does not affect the people around you. Product details: The product includes: Reading light * 1