9 settings and 28 LEDsHave 3 color temperature (3000K to 6500K) and 3 brightness settings (low, medium, high), ' to change the color temperature, 'M' ' to control the brightness.brightness.Touch control, easy to operate,to meet the different lighting needs of your daily life. The reading light is equipped with 28 upgraded LEDs, which provide more uniform brightness than ordinary LEDs. Eye protection functionThe round headlight simulates the diffuse reflection of natural light, reduces multiple shadows, provides clear vision, no flash, no glare. No blue LED light to protect your eyes from damage,soft light lets you read in bed without disturbing your partner HIGH CAPACITY & RECHARGEABLEBuilt-in reading light with 1800mAh USB rechargeable lithium battery, providing up to 28 hours of continuous lighting (low light setting). Fast charging interface, only 3 hours, play everythinganytime, anywhere without connection problems Sturdy clip and 360 flexible gooseneckSturdy clip with padded clip on any edge of furniture, won't scratch it. The flexible neck lets you bend and twist into precise positions, and the clip-on lights let youto have plenty of light wherever you go