... flicker 4.IP65 Low Frequency Garden Lamp RY502 40W self ballast Product information:1.Operation Voltage: 220v-240V 50Hz /110v ... at the surrounding temperature of -25-+50°C11.The electronic ballast has got the function of automatic short-circuit protection12. ... voltage fluctuation (CCC, UL, CE, FCC, SON, KETI approved) Ballast Technical Data: Compared with the High Frequency Induction Lamps, the ...