Includ Clamps and Copper Wire12V 50A 600W Power Supply converter with ul power cord ,wire lugs, metal clip and screw. Dial to the correct gear position, cut off the power before disassembling the connection.Copper Nickel-plated Terminal MaterialSuper convenient for devices with clamps. You can clamp to the two cylindrical contacts directly. which has good electrical conductivity and high conversion efficiency , corrosion resistance,aging resistant. Safety FeaturesAutomatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection.High Reliability, Low Temperature Rise,Built-in EMI filter, 100% Full load burn-in Tested.SMART COOLING SYSTEMItem Shell are designed with Many heat dissipation holes, Built-in Cooling fan and dust-proof net, which effectively prevent dust from entering, ensure the stable rotation of the electric fan and prevent the circuit board from burning. One-Key OperateWith red button on/off switch function, more safe a