Feature:-UV-C sterilizer helps neutralize harmful micro-organisms and free-floating algae-Preassembled aquarium UV sterilizer requires no additional pump or plumbing-Built in UV-C lamp ballast and single power cord mean streamline and clutter-free installation and operation. The newly designed pre-filter and quartz sleeve simplify routine maintenance necessary for optimal UV performance.-The amazing, submersible Submariner UV sterilizer/clarifier allows simple and effective UV control. Compact and versatile units are ready to install - no additional tubing or circulation pump required! Large mechanical pre-filter sponge captures debris to optimize UV exposure and built-in pump directs waterborne organisms past the UV-C lamp for clean, clear aquarium water. Install in vertical or horizontal position right in your aquarium or sump. Great for both fresh and salt water aquarium.Specification:UV Power: 5 WattsPump Power: 5 WattVoltage: 220-240V/50HzH-max:0.4mOutput:500L/HSize:25*5.5*6.5cmCable length:about 1.45mPackage included:1 x UV Filtration pump1 x Suction cup mounting brackets1 x Air tubing1 x User manual