Eye Protection & Energy EfficientUnlike other bed lights for reading, our bedside Lamp has 66 well-distributed and energy efficient LED beads and emits no flickering, no dazzle light. 5 Color Modes & 10 Brightness LevelsThis clip on lamp can meet your different needs in life. Warm Light 3000K emits eye-care light for reading in bed before sleep; Natural light 4000-4500K is designed for general reading; White light 5500-6500K restores sunlight, bringing you the best concentration and improving the efficiency of delicate work such as handicraft, knitting, painting, makeup and working. 30s/30min Timer & Memory FunctionThe 2 timer modes allows you to fall asleep with the desk light on, as it will be off after 30s or 30min automatically for your safety. Press On/ Off button for 3 seconds, until the blue indicator light flashes, the 30s timer starts. Double click the same button until red indicator light on, 30min timer runs. Strong Clamp and Flexible GooseneckBed reading lamp has sturdy metal clamp with an opening width of 2.36 inches and anti-slip sponge, which can be perfectly clipped on the bedside, tables, desks, dorm bunk bed headboard, shelf and anywhere you need. This durable metal gooseneck solves the problem of being soft and easily collapses, 360 flexibility allows you to adjust the position to the most comfortable angle easily and light up the specific area you want.