Mankk 4 Wire Dump Trailer Remote Control Switch 12V Dc Up Down Control, 4W 4 Wire Dump Trailer Remote Control Switch, double buttons control up and down,easy to press.It is a perfect substitute for double-acting hydraulic power plant. Specifications:Voltage:12VDC;Product Specification: 2.8"x2.1"x5.4"(L*W*H);Push Buttons: UP/DOWN;Type: Momentary.Wire Length: 4M,it is more convenient to operate the switch from a distance. Wide Use,Suitable for most double-acting hydraulic pump stations.Suitable for dump trailers, dump trucks, liftgates, elevators, stackers, cranes, etc. The shell is made of ABS material, heat-resistant, corrosion-resistant, high safety factor.The switch is small in size and easy to carry. Dustproof and waterproof design,you can safely use it outdoors.The back is designed with magnets, which can be adsorbed and placed or hung.In addition, it has a separate mounting bracket, which can be fixed on the wall with screws, which is convenient for placing and taking the switch. Easy installation,4 Wires:Green-RAISE,Red-POWER,Black-START,Yellow-DOWN.The package comes with instructions.