USB LED Touch Light, Etrech Ultra Thin Adjustable Brightness 21-LED Touch Lamp Auto Usb Powered Camping Night Light Emergency Light Energy Saving Lamp Bar Light ( USB Cool White ) Applies USB interface, touch switch and unlimited dimmer and also with strong reliability and stability. It has a long service life and can be easily installed which greatly improve its use value, does no harm to human body. Soft light, no Splash screen, no ultraviolet rays, no double image, no glare, natural light, oxidation layer, surface treatment. Ultra Thin smart touch, lkea design, humanized technology, intelligent switch, finger to light body blue touch point light up, use easy, fashion, more bright, more energy saving. Reading good friends, For writing desk, cupboard, show box, furniture cabinet, kitchens, bathrooms, etc.