Advanced UV "Hard Quartz" glass lamp delivers an industry high of 13 months continuous operation until reaching 80% efficiency and features a special non-ozone emitting "L Glass" envelope that eliminates internal quartz sleeve fouling due to nitrogen by-products produced by ozone.
For optimal effectiveness use 2.5 watts UV lighting per 100 gallons of pond water.

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• Watertight design resists failure due to water damage, isolates skimmer water from UV electrical hardware.
• Quartz sleeve thermally protects the lamp, increasing UVC output by as much as 70%. Isolates electrical hardware and lamp from water.
• 26 foot power cord features a remote power supply, isolating it from inside the skimmer box.
• 13 month UV lamp provides 9,000 hours of useful lamp life.