WBM 1312 Pillar Natural Air Purifying Himalayan Salt Lamp with Crystal Chunks, Bulb and Dimmer Switch Unique salt lamp is made from Natural Himalayan salt crystals hand mined in the Himalayan Mountains Once lit the lamp will emit a calming Amber color Heating the salt with the included bulb releases negative ions into the air, creating an effect similar to an ionizer, purifying the surrounding air