Description
Polaris UV Ballast for UVA-418HO, UVA-630HO & UVA-946HO Lamps with 365-Day Countdown Timer
Replace your faulty Polaris UV ballast with this genuine Polaris replacement, designed specifically for high-output Polaris lamps. The built-in 365-day countdown timer reminds you when it's time to replace your UV lamp — helping you maintain consistent water disinfection.
Compatibility
| Fits UV Systems | OEM Lamp Codes |
|---|---|
| Polaris UVA-418HO | GLHO48PP |
| Polaris UVA-630HO | GLHO58PP |
| Polaris UVA-946HO | GLHO90PP |
Ballast Specifications
- Brand: Polaris
- Model: HOB-4890
- Lamp Wattage Range: 48W – 90W
- Pin Connection Type: Polaris (PP)
- Countdown Timer: 365-day built-in
Why Replace a Faulty Ballast?
A failing ballast can cause the UV lamp to flicker, underperform, or fail completely — leaving your water untreated. If your UV system is not disinfecting effectively, the ballast is often the culprit. Always replace with a compatible wattage-rated ballast.
How to Replace Your UV Ballast
- Turn off the UV system and disconnect power
- Turn off the water supply
- Remove the ballast cover
- Disconnect the lamp and power leads from the old ballast
- Install the new ballast and reconnect all leads
- Replace the cover, restore water supply, and power on
- Reset the 365-day countdown timer
- Verify the UV lamp is operating correctly
Matching UV Lamp
Also need a replacement UV lamp? See our replacement lamps collection for compatible Polaris high-output lamps.
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