... , UL,CE, VDE, RoHS Our mainly product is stepping motor, synchronous motor, copper pipe and heat exchange for air-conditioner, mold.And ... StrengthCondition of AC, 600V, 1 mA. 1Second: No BreakdownTemperature Rise≤40 KNoise≤30 dB(A) 35BYJ46-W3-A 12v micro dc Stepper Motor