Description
Replacement UV Lamp – 436mm 50W, 4 Pin Even
Compatible replacement UV lamp for a range of UV water treatment systems including Puretec H Series (RL5), Trevoli wall-mounted and Sentry systems, and the CEG Eco-Pure UV-150.
UV lamps gradually lose germicidal output with use, even though they may continue to glow. For reliable UV disinfection, replacement is generally recommended every 12 months.
Compatibility
| UV System / Brand | Replaces / Notes |
|---|---|
| Puretec H Series | Compatible with RL5 |
| Trevoli Sentry 102 / 103 / 202 / 203 | Compatible replacement for Trevoli 48W lamp |
| Trevoli UV Complete V1 & V2 | Compatible replacement for Trevoli 48W lamp |
| Trevoli Wall-Mounted UV Systems | Suits compatible 436mm / 48W configurations |
| CEG Eco-Pure UV-150 | 2 lamps required |
| Davey | Replaces GHO436T5L/4 |
| Pentair | Suits compatible UV55 / UV75 Point-of-Entry systems |
Trevoli's 48 W lamp used in its Sentry and UV Complete systems is approximately 435–436 mm long with a 4-pin connection, matching this lamp format.
Lamp Specifications
- Our Part Number: L-436-50-4E
- Lamp Length: 436 mm
- Lamp Wattage: 50 W
- Pin Connection: T5 – 4 Pin Even
- Quantity Supplied: 1 lamp
- Recommended Replacement: Every 12 months
Puretec RL5 Replacement
The L-436-50-4E is a compatible replacement for the Puretec RL5 lamp used in Puretec H Series UV systems.
Puretec RL5 specification:
- Approx. 436 mm long
- 4-pin connection
- Used in Puretec H Series systems
Trevoli Wall-Mounted & Sentry Systems
This lamp is also suitable for Trevoli systems using the 436 mm / 48 W 4-pin lamp, including:
- Trevoli Sentry 102
- Trevoli Sentry 103
- Trevoli Sentry 202
- Trevoli Sentry 203
- Trevoli UV Complete V1
- Trevoli UV Complete V2
These systems require 1 lamp.
CEG Eco-Pure UV-150
The L-436-50-4E can also be used as a compatible replacement lamp for the CEG Eco-Pure UV-150 whole-house UV system.
Important: The Eco-Pure UV-150 uses 2 UV lamps, so you will need to order:
2 × L-436-50-4E
The original Eco-Pure UV-150 specification is 2 × 48 W lamps, CEG part number
Please note: This product listing is for one UV lamp. If purchasing for an Eco-Pure UV-150, select a quantity of 2.
Why Replace Your UV Lamp Annually?
UV lamps lose germicidal UV output gradually during operation. A lamp may still visibly glow after 12 months but may no longer be producing the UV intensity required for reliable water disinfection.
Replacing the lamp annually helps maintain the performance of your UV treatment system.
Installation Tips
- Switch off and disconnect power to the UV system.
- Allow the existing lamp to cool before removal.
- Carefully disconnect and remove the old lamp.
- Avoid touching the glass of the new lamp with bare hands.
- Insert the new lamp and ensure the connector is correctly seated.
- Check and clean the quartz sleeve while servicing the system.
- Restore power and reset the lamp-life timer if fitted.
Not Sure if This Lamp Fits?
Check your existing lamp for:
Length: approximately 436 mm
Connection: 4 pins evenly spaced at one end
If you're unsure, send us a photo of your UV system label and existing lamp, and we'll help confirm the correct replacement.
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