... 12v radiator fan General Specification1Electric Strength 5mA max at 1500VAC for 1 min between lead wire and frame 2 Insulation Resistance ... ~167 degree F) 8 Protection Motor protection and polarity protection 9 Lead wire UL1571 AWG28,30; UL1007 AWG24,26; UL1061 AWG26 ... . function: by impendance,by IC, AS+RD,AS+FG,PWM 9. safety approvals: CE,TUV,UL,cUL