Electric Trailer Jack 4000lbs, RV A Frame Trailer Jack 22" Lift, Power Tongue Jack 12V DC with Manual Crank Handle Waterproof Cover for Lifting Boat Trailer Travel Trailer 5th Wheel RV Camper

["Superior Materials: Our electric tongue jack is made of heavy - duty steel, which is stable and sturdy. The external galvanizing and powder coating can effectively prevent rust and extend its service life. The tongue jack design has a huge load - bearing capacity of 4000 pounds, providing stable support for the vehicle and quickly achieving the horizontal adjustment of the vehicle, thus improving the convenience and comfort of using the RV.","22'' Lift: The vertical lifting range of this rv electric jack is 22 inches. There are two methods to adjust its height. For electric operation, simply hold down the button to achieve automatic lifting and lowering. In case of power cord failure, a manual crank is provided for emergency manual adjustment. In addition, the LED light can illuminate the operating area and also serve as a warning to people and vehicles around, thereby enhancing safety.","Security Protection: This power trailer jack requires connection to a 12V DC power source via a power cord to operate. It is equipped with a circuit breaker that automatically cuts off the current when a circuit malfunction occurs, preventing damage to the circuit. This design not only protects the electric jack's motor and other electronic components but also prevents safety accidents caused by circuit overload, ensuring the safety of users during operation.","Weather-resistant: The package includes a black waterproof cover. This cover can effectively protect the electric trailer jack from the effects of harsh weather conditions, such as rain, ultraviolet rays, high temperatures, and low temperatures, thereby extending electric camper jack service life.","Usage & Installation: The application scope of the electric jack for trailer is extremely extensive. It can provide stable support for various vehicles such as boat trailers, travel trailers, RVs, and campers. In maintenance and loading/unloading operations, it is a key tool to ensure safety and improve efficiency. The installation requires no complicated tools or professional installation knowledge, Simply use the three included bolts to easily secure the jack in place."]