The upper and lower switch remote control replacement is suitable for dump trailers, dump trucks, lift gates, stacker trucks, and other 12-volt DC powered hydraulic systems. Compatible with most single-acting hydraulic pump power units, including models from Buchr, Dyna-Jack, KTI, and others. Constructed from high-quality ABS material for durability and long-term use. Features a 14.8 ft steel wire rope, allowing convenient operation from the rear of the trailer during unloading. Ideal for use with single-acting hydraulic power units, dump trailers, dump trucks, lift gates, lifters, stackers, and hoist cranes. Replacement remote control for lift gate switches on dump trailers, with up and down push buttons. Specifications: Power: 12 Volt DC Wire Length: 14.8 ft Buttons: Up and Down System Type: Single-acting hydraulic power units Wiring Connection (4-wire Type 2): Red Power supply (connect to positive terminal of battery) Black Drop (connect to valve) Blue Start (connect to control circuit) Material: ABS Color: Yellow Package Contents: 1 x Winch Controller Note: Light reflection and display differences may cause slight variations in color between the image and actual item. Measurement may vary by +/- 1-3 cm.