[Features] 3-wire single-acting hydraulic power unit 12V DC, small footprint, wide application, easy to carry. [Wide Application] Fits most single-acting hydraulic pumps. [Reasonable Design] 2-button remote control is the most common type of dump trailer remote control, made of impact-resistant, visible plastic with a standard 15-inch cable. Powered by 12 volts DC, well-built. High-quality ABS material in protective casing for long-lasting use. [Wiring] For 3-wire (single-acting) dump trailer control: Use the cable with to connect to the lower valve. Use the cable with circle to connect to the battery's positive terminal and . 3 wires - Red (power), Black (down), Blue (start). Color: As shown Material: Plastic + Metal Package Contents: 1 * 3-wire dump trailer remote control kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.