【Ignition Protection Mechanism】 The submersible pump adopts an ignition protection mechanism, which can effectively prevent the pump from being damaged by strong currents and will not burn when running dry, ensuring safe use. 【Circuit Breaker】 This 12V marine automatic submersible bilge pump has a built-in electronically controlled reed sensor system. The float switch can be automatically turned on or off according to the water level rod. Fully automatic operation and fast and efficient pumping to ensure normal diving. 【Low energy consumption and high efficiency】 The automatic bilge water pump is small in size and with very low energy consumption; it can also provide stable high-capacity output with high working efficiency; it can work without vibration and can keep a pleasant and quiet environment at night. 【High quality and durability】 The automatic submersible pump is made of high-quality PVC and copper materials, with high-strength shell, rust-proof, moisture-proof and corrosion.