Description
UV Lamp Ballast used with ultraviolet and germicidal lamps.
- Type – RW5-425-40.
- Lamp status indication via LED and Alarm indicators.
- Green LED = lamp on. Red LED and Beep Alarm = lamp fault.
This uv ballast will run the following lamps :
- GPH118T5L/4
- GPH212T5L/4
- GPH275T5L/4
- GPH287T5L/4
- GPH303T5L/4
- GPH330T5L/4
- GPH357T5L/4
- GPH436T5L/4
- GPH450T5L/4
- GPH463T5L/4
- GPH550T5L/4
- GPH585T5L/4
- GPH620T5L/4
- GPH645T5L/4
- GPH793T5L/4
- GPH810T5L/4
- GPH843T5L/4
- G36T5L/4
- Philips TUV 16W T5 4P SE
- Philips TUV 20W T5 4P SE
- Philips TUV 25W T5 4P SE
- Philips TUV 36W T5 4P SE
This electronic ballast is used in many different UV water treatment systems, such as the Watts 2, 6, 8 and 12 GPM systems (ie WUV2-230, WUV6-230, WUV8-230 and WUV12-230).
We can also supply the “EPS51-425-40L” ballast which is a more advanced version with a lamp life countdown display. Please see link below :










kevinmcarthura10 (verified owner) –
Was not aware that ballast required replacing, after very helpful advice from ELC,this unit was dispatched very quickly over Christmas period, working great. Thanks for the great service
Brian Hodgson (verified owner) –
Excellent item for the price, very fast and efficient service
Michael Hawkes –
Many thanks for your positive review – it’s much appreciated.
andhowland (verified owner) –
I’m on a private water supply and my proprietary brand of uv lamp driver failed. The RWS-425-40 ballast was a quick inexpensive fix while I get my original uv lamp driver repaired. ELC used APC couriers to get the part to Aberdeen overnight. Part ordered Thursday morning. Ballast arrived Friday at around 16:00. Just a thought, this ballast could be a handy device to have on standby should your main uv fail. Maybe order a backup ballast with your yearly lamp replacement order? Thanks ELC and APC.
Michael Hawkes –
Many thanks for your review and glad we were able to help.