Indus Classic - Himalayan Rock Crystal Salt Lamp, 7 in. Made of natural salt crystal from the Himalayan mountains Works as an air purifier by emitting negative ions into the air and light therapy to reduce stress and increase energy Each lamp is individually handcrafted and unique Sits on a beautiful wooden base Comes with 15-watt bulb, on/off switch and 6-feet electric cord. Ul-listed (complete lamp)