Features: 1.High reliabity and competitive price of 220VAC input power supply 2.Wide operating temperature : -20℃ to~70℃,can be full loaded in -30℃. 3.300VAC input voltage without damage 4.Protection:over voltage protection, over current protection, over temperature protection 5.EMI : Conform to EN55011-B, EN55022-B, FCC-B 6.EMS: Conform to EN61000-4-2,3,4,5,6,8,11 7. 2 years warrantly