[warm light eye protection]: there are 1600k (yellow light - auto), 5500k (cool white light) and 2800k (warm white light) three levels of adjustable brightness, maximum brightness: 90 lumens, just press lightly to control the brightness, the book lamp is soft, protect the eyes from strong light, it is very suitable for reading books on the bed and e-books. < p>[soft and light lamp arm]: the soft and comfortable silicone lamp arm can be bent into any shape, lightweight, only 180 grams, very small and light, easy to carry or put on the bed , worn anytime and anywhere. The neck lamp can be used for reading books or as outdoor lighting for easy travel. [Removable lamp cap, 2 independent control centers]: The lamp cap is removable. There are two USB ports a for direct charging when disassembling the lamp cap without charging cable. Do not connect 2 USB ports at the same time! The lights on both sides can be individually controlled by switches and brightness adjustments. [Large Capacity Battery, USB Charging]: The built-in 550mah + 550mah battery takes about 80 minutes to fully charge and can work continuously for 5 - 10 hours (depending on brightness) after fully charged. The pendant card reader only needs to plug in the USB port of any charging device, such as PC, USB power adapter, mobile power, etc. [widely used]: flexible adjustable lamp designed for reading books and e-books. This lamp is suitable for reading and writing at night. Can be used as a flashlight, reading light, bedside lamp. [package includes] Light*1