Indusclassic Set Of 2 Himalayan Salt Lamp Natural Crystal Rock Ionizer Air Purifier (6-7 INCH) Pack Of 2 Salt Lamps each comes with 15-watt bulb, on/off switch and 6-feet electric cord Unique salt lamp made from Natural Himalayan salt crystals hand mined in the Himalayan Mountains Salt lamp release negative ions in the air, creating an effect similar to an ionizer, purifying the surrounding air Produces a serene glow which will add calm and comfort to your home and office Salt lamps are used for light therapy to reduce stress and increase energy