Flexible MaterialThe TPE outer material is skin-friendly and soft, with a built-in 360-degree bendable metal hose, which can be adjusted at will to create a more comfortable and relaxed reading experience. 3 Light ColorsThe neck reading light has 3 color temperatures. 4500K luminous light is close to natural light, suitable for reading at night, 3000K yellow light for watching mobile phones, 6500K strong light for outdoor sports. 3 Levels of BrightnessThis LED book light has 3 levels of dimmable brightness, click the switch button to adjust, which are 30 percent , 60 percent and 100 percent in sequence. 90 narrow beam angle creates your own private reading area without disturbing your partner or children around you. Hands-Free Neck LightOur reading light has no flicker or glare, keeping you away from eye fatigue. The hanging neck design frees hands, and can be used for maintenance, fishing, mountaineering, car repairing, weaving, etc. Rechargeable 1000mAh BatteryRechargeable reading lamp with built-in 1000mAh battery.