HOMDOX Classic 7 Inch Himalayan Salt Lamp Natural Crystal Rock W/ Bulb HIMALAYAN SALT LAMPS: Unique Salt Lamp is made from Natural Himalayan salt crystals hand mined in the Himalayan Mountains USE FOR: Air Purifier, Improved Sleep Quality, Art Decor. Plug: US Plug.Voltage: 110V. This item comes with 15-watt bulb, on/off switch and 6-feet electric cord. AIR PURIFIER: Works as an air purifier by emitting negative ions into the air and light, creating an effect INNOVATION DESIGN: Our Himalayan Salt Lamp are amber color and sit on a beautiful wooden base, and it is with dimmer switch. Each Salt lamp comes with a UL/CE certified cable, CE Approved and RoHS Conform SUPER CUSTOMERS SERVICE-SUPER GUARANTEE: 6 months 100% guarantee for quality issues .