Collingwood UY2 IP65 Gel-Filled Connector

What It Is

Every low voltage garden lighting cable eventually needs a joint somewhere along its run, and that joint is the point water usually gets in. The Collingwood UY2 is a small gel filled connector built to seal that join the moment it is crimped, rather than relying on a rubber boot or heat shrink to keep the damp out afterwards.

The Connector Itself

This is the standard UY2 in its clear plastic housing, topped with an amber pressure cap that gives the connector its recognisable look. Inside the cap sits a gel compartment that floods over the bared copper the moment it is pressed home, so the seal forms as part of fitting it rather than as a separate step. The connector is built to the same familiar design as the widely used 3M Scotchlok UY2 connector, and it is sized to match the flying leads used across Collingwood's own low voltage outdoor range, so it pairs naturally with the brand's ground lights, spike lights and extension cables.

How It Works

Fitting one is simple. Strip back the two cable ends, seat them side by side in the connector's channel, then press the cap down by hand until it locks shut. That single action drives the gel around the joined cores and seals the housing, giving an IP65 rated connection with no crimping tool, tape or heat gun required. It is built for series wiring, so it suits the common garden lighting layout where one fitting feeds into the next along a shared low voltage run. Each connector takes cable from 0.4mm² up to 0.9mm² cross section, which covers the flying leads fitted to Collingwood's ground lights, spike lights and other low voltage garden fittings. One connector comes ready to fit; no tools or spare parts are included.

Where It Works Best

You will usually find the UY2 buried in a flower bed behind a spike light, tucked into a cable pit where a landscape run splits to feed the next fitting, or used to repair a low voltage lead that has been nicked by a spade. It is just as useful indoors for extending a low voltage run, for example lengthening the feed to an LED strip, anywhere a sealed permanent joint matters more than a quick twist connector. Because it carries an IP65 rating, it also holds up well in a bathroom's wetter zones where a cable joint needs to shrug off splashes rather than just dust. Moonlight's guide to bathroom lighting zones explains what is permitted where.

About Collingwood Lighting

Collingwood Lighting designs and builds its LED products from Sywell in Northamptonshire, and has worked purely in LED technology since 2002. Collingwood says it was among the first to bring fire rated, fully sealed for life and mains dimmable LED products into the UK electrical wholesale market, a claim the brand has built much of its reputation on. It has also been awarded an EcoVadis Gold medal, placing it in the top 5% of companies assessed globally for sustainability, a standard that sits well next to a small component like the UY2 that is built to sit buried and untouched for years.

Good to Know

• Backed by a 1 year warranty from Collingwood Lighting.
• Rated IP65 once fitted, meaning it is fully sealed against dust and protected against low pressure water jets from any direction, so it suits buried, outdoor and damp locations.
• Built for low voltage circuits only. Do not use it to join mains voltage cable.
• Takes cable from 0.4mm² to 0.9mm² cross section, matching the flying leads on Collingwood's low voltage garden fittings.
• Wired for series connections, suited to a run of ground or spike lights feeding one into the next.
• Moonlight Design recommends installation by a registered NICEIC electrician.

Questions People Ask

What size cable fits inside the Collingwood UY2 connector?
The UY2 is built for cable cores between 0.4mm² and 0.9mm² cross section, which covers the flying leads used across Collingwood's low voltage garden and landscape fittings, so cable outside that range will not seat securely.

Can the Collingwood UY2 connector be used on a mains voltage circuit?
No. The UY2 is designed purely as a low voltage connector for garden and landscape lighting cable, and fitting it to a mains voltage circuit would be unsafe and outside what it is built for.

How does the gel inside the UY2 connector actually seal the joint?
Pressing the amber cap down drives a gel compartment over the bared copper cores before the shell locks shut, so the connection is flooded and sealed at the moment of crimping rather than relying on a rubber gasket fitted afterwards.

Does fitting the UY2 connector need a crimping tool?
No tool is needed. The two cable ends sit in the connector's channel and the cap is pressed down by hand until it clicks, which drives the seal closed.

What is the Collingwood UY2 connector's housing made from?
The UY2 uses a clear plastic outer shell with an amber pressure cap, which lock together once crimped to form a single sealed IP65 unit.

7mm x 7mm x Ø10mm (diameter)

• Collingwood Residential Accessories Guide 2025

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