The hydraulic winch relies on the vehicle's own electric system to drive the winch. Advantages: it can be used normally when the vehicle is dead fire (this is its biggest advantage, which is unmatched by other winches). It has great advantages especially in watery areas. Installation Simple can realize multi-position installation and rapid displacement. Disadvantages: Can not maintain long-term use (the limitation of the vehicle's own electric system, self-heating, etc.), most electric winches can provide small driving force and can only apply force in one direction (installed in the front of the car can only Pull forward, install on the rear can only pull back).