A Corner That Barely Exists, A Line That Never Stops
Why a smaller profile can still carry a full-width cove effect
Cove profiles have a habit of getting larger the more effect a designer asks for — bigger channels, deeper bodies, more visible bulk in the corner. The NLP-4545 takes the opposite approach. At just 45.2 x 45.2mm, it's a genuinely compact triangular extrusion, yet its angled diffuser face still fans a single LED strip's light out across both the ceiling and the wall above it, in one unbroken diagonal wash.
The result is a corner that reads as a thin, continuous line of light rather than a visible object. Run it around a full room perimeter and the wall-ceiling junction all but disappears — replaced by a soft glow that lifts the ceiling and grazes the wall below it, without ever showing the aluminium body or the LED source underneath. It surface-mounts directly onto the existing corner, so there's no cutting, chasing, or plaster reveal involved in getting it there.
What a Compact Profile Still Delivers
Six reasons the smaller footprint doesn't mean a smaller effect
Minimal Visual Bulk
At 45.2 x 45.2mm, the profile sits into the corner without drawing attention to itself — the light reads as a line, not a fixture.
One Strip, Two Surfaces
The 45° diffuser face fans a single LED strip's output across both the ceiling and the wall above the profile — no second channel required.
Fully Concealed Source
The LED strip sits inside the aluminium body behind a white PC diffuser — from any seated or standing sightline, only the glow is visible.
Unbroken Perimeter Line
Run continuously around a room, joins disappear into a single, even band of light along the full ceiling edge.
Height Without Extra Bulk
The upward component of the wash still lifts the eye and the perceived ceiling height, at a fraction of the visual footprint of larger cove profiles.
Same-Day Perimeter Install
No framing or bracket work — the triangular body seats directly into any standard 90° corner, strip in, diffuser clipped, done.
Small Profile, Full-Width Effect
The temptation with cove lighting is to assume more light needs a bigger channel. The NLP-4545 proves otherwise. Its 45° angled face does the work that a larger, flatter profile would need two separate faces for — fanning a single strip's output across both the ceiling and wall planes at once. What's left in the corner is a compact aluminium body that all but disappears, leaving only the diagonal line of light it produces.
Finish Options
Two powder coat finishes, one white PC diffuser
White Powder Coat
Blends into white ceilings and cornice lines · white PC diffuser
Black Powder Coat
Reads as a deliberate corner detail against lighter ceilings · white PC diffuser
Surface-Mounted — No Recess, No Plaster Reveal
The NLP-4545 fixes straight onto the existing wall-ceiling corner with screws or adhesive clips. There's no cutting into the ceiling structure and no plasterboard reveal to build. Seat the LED strip into the channel, snap the PC diffuser cover into place, and the run is live — a full room perimeter can typically be fitted and wired within a single day, in both new-build and retrofit settings.
Where a Compact Corner Line Fits
Spaces suited to a lower-visual-bulk cove profile
Living Rooms
Perimeter cove as the primary ambient source, without a visible fixture in view.
Bedrooms
A quiet, low-glare corner line suited to evening dimming routines.
Hotel Rooms & Corridors
Consistent perimeter glow across many rooms without added ceiling bulk.
Corporate Offices
Ambient perimeter light that stays out of the way of screens and sightlines.
Restaurants & Cafés
Warm diagonal wash for an intimate dining atmosphere without visible fittings.
Clinics & Wellness Spaces
Calming indirect light suited to waiting areas and treatment rooms.
Retail Spaces
Keeps the ceiling perimeter bright while product lighting stays the focal point.
Banquet & Function Halls
Colour-changing strip options for a full-perimeter line that adapts to event themes.
Frequently Asked Questions
Installation and specification questions about the NLP-4545
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The NLP-4545 measures just 45.2 x 45.2mm, making it one of the more compact corner cove profiles available. Its size affects visual bulk, not brightness — the channel still accepts standard-width LED strips up to typical cove wattages, so the light output is governed by the strip chosen, not the profile itself. The small footprint simply means the corner reads as a thin line of light rather than a visible fixture.
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Both, from a single LED strip. The profile's diffuser face sits at a 45° angle inside the corner, so the light it releases fans out across the ceiling surface above and the upper wall surface below at the same time. It is a single-channel profile, so both surfaces are lit together rather than independently.
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The aluminium body is available in white powder coat and black powder coat, both paired with a white PC diffuser cover. White is typically chosen to disappear into a white ceiling and cornice line, while black is specified where the corner itself is meant to read as a deliberate architectural detail against a lighter ceiling.
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Yes. It is a surface-mount profile designed to fix directly onto an existing wall-ceiling corner with screws or adhesive clips — no cutting, chasing, or plasterboard reveal is needed. The LED strip is seated into the channel first, then the PC diffuser clips on to complete the run. A full room perimeter can typically be fitted and wired in a single day.
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No — for large rooms, a continuous corner line usually reads better than a bulkier one, since the goal is an unbroken glow rather than a visible object. Where a wider ceiling wash is specifically needed in a large or high-ceilinged room, a higher-output LED strip inside the same NLP-4545 channel achieves greater spread without changing the profile size.
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The channel accepts standard single-colour white strips, tunable white (CCT) strips, and RGB or RGBWW colour-changing strips. Warm white in the 2700K to 3000K range is the most common specification for residential and hospitality cove lines, while tunable white and RGBWW are used where colour scenes or daily colour-temperature shifts are part of the lighting design.
Specify the NLP-4545 for Your Corner
Talk to our team about LED strip pairing, finish selection, and layout for the NLP-4545 corner cove profile.
