Collingwood WL339 Asymmetric Straight to Mains Cast Finish Step Light - Stainless Steel

A Step Light That Does Two Jobs at Once

The WL339 recesses flush into a wall base or straight into the ground beside a step, and instead of firing all its output straight down, it uses an asymmetric lens to send part of the beam out horizontally too. That means one small fitting marks the edge of the tread and throws useful light across the path ahead, rather than needing a separate light for each job. It's built to take direct foot traffic, so it can sit exactly where people walk rather than being kept out of the way.

This Stainless Steel Cast Finish

This version is cast rather than machined, so the stainless steel has a slightly rough, granular surface instead of a mirror polish, giving it a more rugged, less obviously "lit" look in daylight. Collingwood also offers the WL339 in a smoother brushed stainless steel for a cleaner finish, so the cast option is the one to pick if you want the fitting to blend into stone, brick or render rather than stand out. Underneath that texture it's the same marine grade 316 stainless steel body with a 5mm toughened glass lens, so nothing is given up on durability to get the rougher finish.

How It Works

A 2.6W LED sits behind the toughened glass lens, running at 3000K warm white and putting out around 50 lumens according to Collingwood's own published figures. The lens is asymmetric, splitting the beam across roughly 50 degrees so light spreads sideways as well as down. The driver is built into the fitting, so this is a straight to mains light with parallel wiring, meaning several units can be run from the same circuit without daisy chaining live and neutral through each one. It's supplied with a run of rubberised cable and an installation tube, which holds the body in the correct position while it's set into wet render, blockwork or the ground, before the surrounding surface is finished around it.

Where It Works Best

With an IP65 rating and a marine grade stainless steel body, this is a fitting for exterior steps, garden paths, driveway edges and decking, including coastal or otherwise exposed spots where a lesser material would corrode. It also suits sunken or half buried mounting into a wall base rather than sitting proud of a surface. Its IP65 rating also covers bathroom zone 2, so it can be used beside a step down into a wet room or sunken bath area if that's where you need it. Our guide to bathroom lighting zones explains what that rating means in practice.

About Collingwood Lighting

Collingwood Lighting designs and builds its LED fittings from Sywell in Northamptonshire, and has focused solely on LED technology since 2002. Collingwood says it was among the first suppliers to bring fire rated, fully sealed for life and mains dimmable LED products to the UK electrical wholesale market. The company has also been awarded an EcoVadis Gold medal, placing it in the top 5 percent of businesses assessed globally for sustainability.

Good to Know

• Covered by a 7 year manufacturer warranty.
• IP65 rated, protected against low pressure water jets from any direction and suitable for direct outdoor exposure and bathroom zone 2.
• Class I electrical, so it needs a proper earth connection as part of the installation.
• Parallel wiring allows multiple WL339 units to be connected to the same circuit without daisy chaining.
• Wipe the cast finish clean with a soft, damp cloth and avoid abrasive cleaners, which can smooth out the texture over time.
• Moonlight Design recommends installation by a registered NICEIC electrician.

Questions People Ask

What makes the WL339 different from a standard step light?
Its lens is asymmetric, so instead of only lighting the ground directly beneath the fitting, it throws part of the beam out across the step or path as well.

Can this stainless steel cast version be walked on?
Yes, this cast finish WL339 is walk over rated and built from marine grade 316 stainless steel, so it can be recessed flush into a step or ground surface that takes regular foot traffic.

Does it come with everything needed to fit it?
It's supplied with a length of rubberised cable and an installation tube that holds the body in place while it's set into wet render, brickwork or the ground, ready for the surrounding surface to be finished around it.

What colour temperature is this listing?
This particular WL339 stainless steel cast listing runs a 3000K warm white LED producing around 50 lumens.

Is the WL339 suitable for a coastal garden?
Yes, its IP65 rating and marine grade 316 stainless steel body are designed to resist salt air and exposure, making it a suitable choice for coastal paths and steps.

Flange 98mm diameter (refer to spec for more details)

• Collingwood Step Light Guide 2025

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