This submersible water pump is epoxy encapsulated, which is safe for your fish and aquatic plants. It's excellent for aquariums, hydroponic systems, small fish tanks, water gardens, and a variety of other applications. Add more circulation to your aquarium and give your lovely fish a near-natural environment. Features: Adjustable water flow rate: adjusting the knob helps adjust the flow rate easily. 8W pump, Max. flow rate is 600L/H, H-Max.(lift height) up to 110-120cm. Come with 2 water outlet nozzles(0.3in and 0.5in), providing different water flow effects. The reliable and durable motor produces low noise, giving you a quiet environment. 4 strong suction cups at the bottom are great for mounting on where both vertically and horizontally. Small size makes it not only easy to hide or disguise but also convenient to disassemble and clean. Perfect for small to medium size aquarium, tabletop fountains, water gardens, and hydroponic systems, etc. Specifications: Plug Type: US / EU / UK / JP (Optional) Voltage: US/JP: AC110V; EU/UK: AC220-240V; 50-60Hz Power: 8W Max. Flow Rate: 600L/H H-Max.(Lift Height): 110-120cm / 3.6-3.94ft Waterproof Grade: IP68 Power Cord Length: Approx. 140-200cm / 4.6-6.56ft Pump Size: 58 * 44 * 55mm / 2.3 * 1.7 * 2.16in Weight(Pump+Power Cord): 226-261g / 8-9.2oz Package Size: 11 * 7.5 * 8cm / 4.33 * 2.95 * 3.15in Package Weight: 244-300g / 8.6-10.6oz Package List: 1 * Water Pump 2 * Water Outlet Nozzle 1 * User Manual(English) Note: 1. Please keep the pump operate in the water, otherwise would damage the pump; 2. The maximum flow rate is 600L/H; there might be a plus-minus tolerance; 3. Insufficient power and insufficient frequency would affect the flow rate; 4. 600L/H refers to the flow rate without using a water pipe. If connected with a water pipe, the maximum flow rate would less than 600L/H; 5. If the water sprays out of the container, the flow rate would also less than 600L/H; 6. Please clean it regularly in case of debris blockage, the pump would make noises or even make the motor short circuit if blocked by debris.