LEDniceker Minimalism Cordless Eye Protection LED Reading Light/Desk Lamp, With USB Charge Cable, Free Twisted Tube, 3 Level Adjustable Brightness(White) Sensitive touch sensor switch to adjust the brightness 3 level of brightness, high, medium and low for reading, relaxing and sleeping The tube is made of silicone alloy, 360 degree to change the illumination angle 4 non-slip mat under the bottom to prevent the light from sliding Low consumption and long lifespan, the battery can be cycle charged