Indus Classic Pack Of 2 Himalayan Salt Lamp Natural Crystal Rock Ionizer Air Purifier (8-Inch) Each Salt Lamp Weigh between 6~9 lbs and Comes with 15-watt bulb, on/off switch and 6-feet electric cord Works as an air purifier by emitting negative ions into the air and light therapy to reduce stress and increase energy Heating the salt with bulb releases negative ions into the air, creating an effect similar to an ionizer, purifying the surrounding air Unique salt lamp is made from Natural Himalayan salt crystals hand mined in the Himalayan Mountains Great Gift Idea Natural Rock Salt Use it for both home & Office, Memorable gift for Birthday, Wedding, Anniversary