This Himalayan salt crystal lamp is said to create negative ions in the air which is a good thing as modern pollution and electrical equipment creates positive ions in the air which are potentially harmful and lead to deterioration of air quality in affected areas. By using a Himalayan salt crystal lamp, you replace the negatively charged ions in the air, helping us to avoid the alleged physical and mental damage that "electric smog" creates. Delivered complete with a light, a bulb and a USB connector, it is 150 cm long. Items are marked with sizes to give an approximate idea of ​​size only. Each lamp is completely unique!