Name: AllPondSolutions 11w PLS UV Bulb / 2 Pin Lamp - Pond/Aquarium
Brand: AllPondSolutions
SKU: UV-BULB-11W
Price: 10.49 GBP
Availability: InStock

AllPondSolutions 11W PLS 2-pin UV replacement bulb for pond and aquarium sterilisers

Price

Model: UV-BULB-11W

Free UK delivery - Online Tracking

30 Day easy returns

Same day despatch before 3pm *

In stock, ready to ship
Inventory on the way

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Dimensions: 235mm overall length · 2 pin fitting

Our 11w PLS UV bulb is a direct replacement lamp for pond and aquarium UV sterilisers, clarifiers and UV-equipped filters. It fits all major manufacturers' units - measure your existing bulb end to end and check it against the figure above before ordering.

Specification

11w PLS germicidal UV-C lamp
235mm overall length
2 pin fitting
Average lifespan approximately 9,000 hours
Suitable for pond and aquarium use

Fits our own brand

AllPondSolutions CUV-211 steriliser; CUP-311 and CUP-7000; PF-8000 and PF-12000; PFC-5000, PFC-8000 and PFC-12000; AUTO-PFC-5000, AUTO-PFC-8000 and AUTO-PFC-12000 filters.

When to replace it

A UV bulb stops working long before it stops glowing. The visible light remains while the invisible UV-C output fades, so a lamp that still lights up can be doing nothing for your water.

Sterilisation: replace every 6 months (approximately 4,000 hours)
Pond or aquarium clarification: replace every 12 months (approximately 8,000 hours)

Clean the quartz sleeve whenever you change the lamp - limescale and biofilm on the sleeve block UV-C just as effectively as a dead bulb does. See our UV Steriliser Maintenance Guide.

Easy to install. The lamp pushes into its holder and the quartz sleeve reassembles as it came apart. Always isolate the power supply before opening a UV unit.

UK Delivery - Non-pallet items

Orders are dispatched Monday - Friday.

Our Next Day last dispatch times for Monday to Friday are 3pm.

We offer a tracked 24 & 48 service using Royal Mail and Amazon Shipping for orders.

Tracked 2-3 Days - FREE
Tracked 1-2 Days - £4.00
Courier Next Day - £6.00

UK Delivery - Pallet items

UK Mainland Pallet Service 3-5 days - FREE
Extended Areas Zone 1 (4-7 days) - £80.00
Extended Areas Zone 2 (4-7 days) - £130.00

Important
Pallet delivery is to the kerbside (at least 2 people will be needed to off-load depending on item size.)

The couriers WILL NOT be able to assist you with moving the aquarium/terrarium or chiller onto the premises. This is due to insurance purposes.

Express next day service orders must be placed before 3pm to ensure they are dispatched that day.

Deliveries will take place between 08:00-19:00 Monday to Friday. Delivery outside of these hours may be subject to an additional fee and local depot availability.

Visit our Delivery Information page for full details.

Which AllPondSolutions units does this 11w bulb fit?

It fits the CUV-211 steriliser, the CUP-311 and CUP-7000 all-in-one units, and the PF-8000, PF-12000, PFC-5000, PFC-8000, PFC-12000 and AUTO-PFC-5000/8000/12000 filters.

Will it fit other brands of UV steriliser?

It's suitable for most popular quality manufacturers' units, but UV bulbs vary — please check the length and pin type of your existing bulb against this 11w PLS 2-pin lamp before ordering.

What type of bulb and fitting is this?

It's an 11w PLS lamp with a 2-pin base.

How often should I replace the UV bulb?

We recommend replacing it around every 12 months. UV output fades over time, so a bulb can still light up while no longer sterilising effectively.

My water has gone green but the bulb still lights – why?

A lit bulb isn't proof of UV output; the germicidal strength drops well before the lamp stops glowing. If green water returns after about a year, it's usually time for a new bulb.

Is this bulb suitable for both ponds and aquariums?

Yes — it's used across both pond and aquarium sterilisers and filters in the compatible range listed above.