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. Made from high-quality ABS material with durable construction for long-term use. The 14.8 ft long steel wire rope allows 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, elevators, stackers, and hoist cranes. Replacement remote control for lift gate switches on dump trailers, featuring 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 Instructions (4-wire Type 2): Red Power supply (connect to positive terminal of battery) Black Drop (connect to valve) Blue Start Material: ABS Color: Yellow Package Contents: 1 x Winch Controller Note: Light reflection and different displays may cause slight color variations between the image and actual item. Measurement error allowance is +/- 1-3 cm.