100% pure crystal salt which was found deep in the ground over 260 million years old which gives leaves the salt protected from contamination during the mining process they are made by hand in small villages with highly skilled craftsmen using their family skills to produce beautiful lamps for best results they are best left on up to 24hours and should feel warm but you can have them on for a couple hours. Item Include: 1 X Hand Crafted Himalayan Salt with attached wooden base,1 X Bulb, 1 X UK Mains lead will all fittings(All electrical components comply with European safety standards. Happy Marry Christmas/New Year: Your Loved Gift Himalayan Pink Salt Lamp Natural Crystal Rock Salt Lamp With UK Lead and Bulb Pink USB Ionizing Healing USB Corded Large Natural Therapeutic Himalayan Salt Lamp Best Quality Beautiful Color: Pale to dark pink through to orange/orangey red it comes on a fixed wooden base and price includes salt lamp electrical fittings with UK Plug and 15w bulb