Can be used as a submersible pump or in an external inline use with vertical output water flow. These pumps are quiet & have reliable operation. Only need an hose and power supply it can be worked well, no other device needed. Feature - Color: Black.- Material: Engineering Plastic+Stainless Steel+Electronic Components.- Size: 8 x 4.8 x 6.3cm.-?Pump power: 26.4W.- Maximum lift: 7 meters.- Maximum flow: 900L H.- Outlet: outer diameter 12MM.- Outlet: inner diameter 6.9MM.- Inlet: outer diameter 16 MM.- Inlet: inner diameter 12MM.- Current: 1.2A.- Noise: 35 decibels.-?Submersible water pump for aquarium, fountain, pond has fish, etc.- With one large suction cup on the bottom and be used in water well.- Also can be used for aquarium, fish tanks, bonsai, rockery, water cooling system for laptop or many experiments.?Warm Tip: Dear buyer, Due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!Packing list: 1 x Brushless Solar DC Water Pump Circulating Pump Silent Aquarium Water Pump