Hideeled Optical Illusion Touch Control 3d Table Lamp, Green Color with Various Designs to Choose, Best Valentines Gift (Hulk) Touch Control: Smooth Dimming (0-100%). Slight touch will power on/off, long touch will adjust the brightness. USB power Port:compatible with any USB power port, such as Laptop, Computer, USB Power Bank, USB Power Adapter, and any other with USB Connector Energy saving&Environment friendly:LED lights are more energy saving than the CFL and the incandescent lamp. Not contain Pb and Hg, no pollution, green lighting. No radiation&No flickering:There is no buzzing noise and UV radiation during use. Provide us a quiet safe environment. LED Light Source: This wonderful lamp has LED chips as the light source, this gives the light a life span of more than 50,000 hours, it's definitively a lamp that will last a lifetime.