Conductor: tinned copper , insulation : Teflon CONDUCTOR: TINNED COPPERINSULATION: FEP TEFLONTEM. RANGE: -100oC~+180oCRATED VOLTAGE: 300/500VTESTING VOLTAGE:2500VCOLOR: RED, BLUE, WHITE, YELLOW, BLACK, BROWNUSE: It applies to the inside join of household appliances, electron equipment, lamps, cooking apparatus etc.