Specifications: Power： T5－5W/8W/10W/15W/10W/15W/21W/28W/37W/40W Diameter: 15mm Base: 4-pin Single Ended Wavelength：253.7nm Features: 1.Quartz glass can be filtered through more than 90% ultraviolet radiation 2.Emit light spectrum at 253.7nm, which causes the DNA damage and bacterial death or change 3.Can kill a variety of microorganisms, including viruses, bacteria (Bacillus, Mycobacterium), fungi, rickettsia, etc Applications： a variety of different sterilization, air and water purifiers