Compact and efficient UV disinfection systems from Aquionics pass wastewater through closed-vessel or open channel configurations and expose it to UV light from high-output, medium pressure or low-pressure high-output amalgam lamps. An automatic quartz-sleeve cleaning system ensures optimal disinfection and reduces maintenance. Simple intelligent control software allows facilities to access information on system performance and customize operating parameters to work with plant controls. A Power Stepping feature regulates power to the lamps, increasing and decreasing input power as needed ensuring adequate disinfection while optimizing power consumption. Systems have been third-party validated and treat a wide range of flows and water quality.