1,TUV,UL,CE,ISO CERTIFICATE 2,OVER 30 YEARS LIFE 3,WORKING VOLTAGE: 36V 4,WORKING CURRENT: 5A ... shut up the Inverter, Save more energy. Project Case 2009.02 Offer the 300watt Solar home system 100 sets to Philippine ... location people use 10 hrs/days ,2-3 rainy days 30 watt solar system