negative ion lamp,anion air-purifying lamp It's green. Clear smoking Applications: Shopping malls, supermarkets, restaurants Negative ion lamp,anion air-purifying lampANION AIR-PURIFYING LAMPSpecifications:Optional wattage:15-25W Operating voltage: 110 to 130V or 220 to 240V Frequency: 50/60Hz Average lifetime: 8000 hrs/10000hrs available Optional base: E27/E26/B22Optional Color Temperature: 2, ...