Origin: It comes from the seabed of Himalayas, formed by the thousands of years’ geology compressional deformation and effects of high temperature. It contains 84 natural minerals and microelements. The salt crystal lights are all handcraft. It can produce negative ion, electromagnetic wave, and light wave that all good for human beings. Functions: 1. Produce negative ion in nature. 2. It produces Schumann wave after light on to against the high frequency of electromagnetic wave come from electrical appliances. 3. The Schumann wave produced by it can be helpful for eyes’ protection. 4. It can purify the air and remove skin allergy. 5. It can be decoration and security in home. 6. It can be Night Light for loves to enjoy, or children to have good sleep. Application: 1. Decoration in home and purify air after indoor fitment. 2. Put it in rooms of Dhyana and SPA can be helpful for comfortable. 3. Helpful for cure to patient of skin allergy and insanity. 4. Helpful for office workers to reduce tiredness and against electromagnetic wave. 5. Good for children to sleep well. 6. Help smoker to reduce smoky flavor. 7. Purify air in the bathroom. Maintain: 1. Please clean it by use dry cloth, do not put it into water. 2. Please put it in dry places, keep it away from moist places. 3. Please use dry cloth to clean it if there is sweat, then light on it for hours for dry it. 4. Please put it into plastic bag for avoids moisture if you needn’t to use it. 5. You can turn down the light when you sleep or leave home, but better do not turn off for avoid moisture. 6. Please protect it against break or cpllision. Applicable Scope: 1. The light less than 5kg: 7-25W, 3-5 square meter. 2. The light of 5-7kg: 15-25W, 5-9 square meter. 3. The light of 7-11kg: 15-40W, 9-14 square meter. 4. The light of 11-16kg: 25-40W, 14-18 square meter. 5. The light of 16-22kg: 40-60W, 18-25 square meter.