Oumai Natural Himalayan Salt Lamp Ceramic With Wood Base,Rotary Dimmer Switch With Cord and Three 15 Watt Light Bulbs Included: Natural Himalayan Salt, Ceramic with Wood Base,Three 15 Watt/110 Volt Light Bulbs,Rotary Dimmer Switch With Cord;Lamp and Cord are both UL approved. Size: Height approx 5.5 Inch; Light mouth diameter approx 3.1 Inch; Diameter of the base approx 4.7 Inch Weight: Approx 5-5.5 pound; light weight approx 1-1.5 pound; salt weight approx 3.5-4 pound Himalayan Salt Lamps are natural negative ion generators,the negative ion can neutralize positive ions and help cleanse the air; When lit this lamp,which will emit soft amber glow,it is suit for living room, bathroom,bedroom... Hand crafted from natural Himalayan salt crystals,each salts are both vary,and they are not for Human Consumption