UV Lamp Power Supply
The Atlantic Water Gardens UV ballast replacement fits the Oase Biopress UVC 1000, 1600, and 2400 pressurised pond filters as well as the BioSmart UVC 1600 — providing the electronic power supply that drives the UV clarifier lamp. A failing ballast is the most common reason a UV clarifier stops working despite a visually intact lamp — if the lamp does not glow when powered, the ballast is the first component to test and replace.
The Ballast Is the UV System's Heart
UV clarifier lamps require a specific starting voltage and operating current that differs from standard electrical supply. The ballast provides the high starting voltage to strike the arc in the UV lamp and then regulates current to maintain consistent UV output through the full operating cycle. Electronic ballasts are reliable but sensitive to moisture infiltration and voltage surges — both common in outdoor pond environments across Canada. A failed ballast produces no UV output and zero algae or pathogen control despite the pump and filter running normally.
| Compatible Filters | Biopress UVC 1000, 1600, 2400; BioSmart UVC 1600 |
|---|---|
| Component | Electronic UV lamp ballast (power supply) |
| Function | Powers and regulates UV clarifier lamp |
| Voltage | 120V input (verify at installation) |
| Part Type | Genuine Atlantic/Oase OEM |
How to Replace
Disconnect power to the filter completely. Locate the ballast housing on the UV head assembly. Disconnect the ballast wiring following the service documentation for your specific model. Install the new ballast and reconnect all wiring. Restore power and confirm the UV lamp illuminates — the quartz sleeve should show a blue-violet glow. Replace the UV lamp simultaneously if it has not been replaced within the past 12 months.
Ideal for maintaining UV clarifier effectiveness in Oase Biopress filter systems across Canadian pond seasons.

