About This GYRE CROSS FLOW — Wide horizontal circulation eliminates dead spots and improves full-tank water movement for reef, marine, and coral aquariums. NATURAL OCEAN SURGE — Simulates natural reef surge with gyre, pulse, and random wave modes, creating realistic coral sway and ocean-like current patterns Safe Low Voltage: Power 25 watt, use DC 24V working voltage, stable and safety. Come with a magnet bracket is strong enough to install securely on the 15mm thick tank. Recommend for 75 -250 gallons aquarium up to 39" in length Linkage Function, Troubleshooting: The wireless linkage tech can easily connect and synchronously control multiple wave pumps. When a fault occurs during use, control panel will issue a corresponding error code for you to find the possible cause quickly Gyre Wave Pump: The compact dual-pump head design combines unique cross-flow tech with wavemaker performance to better mimic continuous and natural ocean surge, gentle and powerful. With 270° rotation angle that can freely adjust the flow direction Easy Use Custom Options: hygger cross-flow pump offers five wave modes: pulse, sine, constant, random, and gyre. You can set the intensity from 30-100% in 1% intervals, adjust the frequency of the flow, to suit the specific needs of their aquarium setup Adjustable Control: The included controller has a screen that intuitively shows patterns, speeds, and frequency of peaks. It also has extra feeding (to pause flow for 10 min) and night functions (will auto reduce speed when sensing a dim in ambient light) Overview Brand : hygger Color : Black Material : Plastic Style : wave making Product Dimensions : 11"L x 1.37"W x 2.75"H Power Source : Corded Electric Voltage : 24 Volts (DC) Manufacturer : hygger