Research facility staff and other aquatic husbandry personnel will find our Smart HO Multi-Lamp UV Systems are easy to install, operate and maintain. Single-end access allows for time saving serviceability of the lamp and quartz sleeve. The Highest-Quality American-Made Low-Pressure High-Output UV Lamps offer 80% efficiency after 12,000 hours** of continuous operation. One-year warranty on ballasts. Made in USA.