DetailsElectric Himalayan Salt Lamp 4-6kg. Warmed by a small electric globe these natural lamps emit health promoting Negative Ions as they glow warmly in your room. A natural air ioniser, when turned on, these lamps emit negative ions into the air helping to combat fatigue and irritability. Negative ions may also assist in keeping cold and flu bugs at bay. Every natural lamp is unique and varies slightly in shape and colour although mostly from a light peach, orange to a darker brown.