LED stree light power supply, over voltage protection, over current protection, short circuit ... (above 4KV)4. Water proof grade IP675. Over temperature power protection6. High efficiency, high reliability, lifetime is 50000 hours ... ~275VAC,47~63Hz2.Surge current:<30A(25°C,220Vac,cold boot)3.Power factor:>95%(full loading 220Vac)4. ... circuit protection Economic and Quality LED stree light power supply