The unfolded dimensions of this reading light are 2.3 x 1.9 x 56.8 cm Eye-protecting reading light: The reading light adopts advanced anti-glare LED beads to protect your eyes to the greatest extent when reading. Wear it around your neck without having to hold a lamp or flashlight for lighting, allowing you to read comfortably for hours, The soft light did not disturb the sleeping companion at all 3 Brightness Levels: This USB rechargeable lamp has 3 color temperatures: warm light (3000K), natural light (4500K) and cool white light (6000K) and 3 brightness levels, short press to freely adjust the brightness (20%-100%), easily adaptable to various occasions as reading lights 360° Flexible Arms: This hanging neck lamp is made of soft TPE, which is skin-friendly, comfortable to wear and not easy to slip off during use. Built-in metal tube, you can bend it 360° to the correct position you want, each side of our bed book reading light can adjust the power individually, just 3 clicks you can adjust the brightness USB Rechargeable Long Life: The rechargeable book reading light has a built-in lithium battery, it only takes 2 hours to fully charge and it supports up to 5-30 hours of lighting, no worry about the fast power consumption. The included micro USB charging cable allows you to charge it anytime via computer, wall charger, power bank Portable and Versatile: This LED neck light weighs only 140 grams, is small in size and light in weight, can be easily folded and put in a backpack, the neck hanging reading light is very suitable for reading in bed, in the car or traveling at night, also suitable for sewing, knitting or even outdoors, for traveling, camping, night jogging, etc.