Arcadia Ultra Clear UV Lamp - Regular T5

For optimal performance, it is recommended to replace the UV lamp annually. The UVC output degrades over time, even if the lamp continues to emit light.

The Ultra Clear UV Lamp is primarily effective against free-floating green algae that cause water cloudiness. It is less effective against algae that grow on surfaces (like string algae or green spot algae).

Ensure your UVC clarifier or sterilizer uses a T5 type UV lamp and matches the wattage of the Arcadia Ultra Clear lamp you are purchasing. Refer to your UVC unit's manual for specific compatibility information.

Yes, UVC clarifiers/sterilisers are designed to run continuously for maximum effectiveness in maintaining clear water. Always ensure it is properly installed and functioning.

UV lamps generate some heat during operation, but they are designed to function within the water-filled UVC chamber without causing harm to the system.

While the lamp may continue to light up for longer, its effective UVC output for algae control is typically considered to last for approximately 8,000-10,000 hours, which is why annual replacement is recommended.

Ensure the lamp is the correct wattage and type (T5) for your UVC unit. Check that the lamp is correctly seated and that the UVC unit is functioning. Allow 24-48 hours for the UVC light to neutralize the algae. If problems persist, check the quartz sleeve for cloudiness or damage and clean or replace it if necessary.

Verify that the lamp is properly seated in its socket. Check the power connection to the UVC unit. If the lamp is old, it may have reached the end of its lifespan and needs replacement. Ensure the UVC unit's ballast is functioning correctly.

UV lamps lose their UVC output over time, even if they still light up. Lamps should be replaced annually, or as recommended by the UVC unit manufacturer, regardless of whether they appear to be working.