What is an LED ceiling profile?

An LED ceiling profile is an extruded aluminium channel that carries an LED strip and fixes into a ceiling — either into a pocket formed by a drop or shadow gap, or recessed into the plasterboard itself. The channel holds the strip, takes a diffuser, and sets the line the light reads as.

What is the difference between a ceiling profile and a cove profile?

Both are aluminium channels. A cove channel hides in a pocket above the sight line and throws its output across the ceiling, so the strip is never visible. A recessed ceiling profile sits in the board itself, so the diffuser stays in view as a defined line. The choice is about whether you want the source hidden or expressed.

How do I pick the right strip width?

The channel is tooled for a band of strip widths, and that number is the first hard limit. In this range the accepted strip width runs from 7 mm to 63 mm. Filter by the strip you already buy, then check the outer height against the pocket you can build.

Can these profiles be used in a plasterboard or false ceiling?

Most of this range is recessed, and the majority of those are plaster-in bodies: the flange is buried in the board and only the opening remains visible. The drawing for each model gives the outer dimensions the cut-out has to clear.

Do the profiles come with a diffuser and end caps?

Diffuser and accessory options differ by model. What each channel ships with is listed on its specification sheet — use the PDF button on any card to check before you specify.

What if nothing in the list matches my ceiling detail?

Send us the section you are working to. We hold the tooling for the range, so matching an unusual reveal or strip width is usually a question of which existing section it maps onto.

LED Profiles with Lens Optical covers instead of diffusers

A lens is not a diffuser. A diffuser spreads output; a lens shapes it — narrower, further, or away from the eye. Six bodies in this group, all with a PMMA cover.

See the 20 profiles

— profiles in this range strip width accepted — mounting methods — extruded in 6063-T5 aluminum

Section reference W · H · S

WOuter width HOuter height SStrip width accepted

—ceiling profiles in this range

—distinct strip widths in this range

—mounting methods

—recessed, plaster-in bodies

01 / WHY

Three decisions decide whether this detail works

The channel is only part of it. What the run looks like in service depends on what it is fixed into, the section you choose and how the output is aimed.

The cover is doing optical work

Where a diffuser spreads light evenly, a lens controls where it goes. That is the reason to pick a body from this group.

PMMA, across the whole group

Every body here takes a PMMA cover, which is the material used when the cover has a defined optical job.

Useful where a bright line would be seen

A shaped cover is the answer when the run is in the sight line and a plain diffuser would read as glare.

02 / CATALOGUE

All 6 profiles in this group

Live from the product catalogue — add a profile in the backend and it appears here without touching this page.

Strip width

Mounting

Showing 0–0 of 0

03 / START HERE

Pick the constraint you actually have

Four of the decisions that come up first, each answered from the live range above — by outer height, by the strip you already buy, and by how the body has to be fixed.

Back to the range above

04 / SELECT

How to narrow this range down to one body

Three numbers decide it, in this order. Every figure below is this group, not the whole catalogue.

01 Decide what the lens is for

Narrowing the output, throwing it further, or keeping it out of the eye. That requirement is what picks the body.

02 Then the strip width

This group accepts 12–25 mm strip.

03 Then the mounting

Recessed, surface and suspended bodies are all here, so the optical choice does not fix the detail.

05 / RANGE

Four ways this range fixes to a ceiling

Grouped by how the body is installed. Counts update from the catalogue index; each group links to the full mounting page.

06 / QUALITY

Who builds the section, and what stands behind the drawing

The certifications below are issued to Shenzhen Helian Electronics Co., Ltd. Certificate numbers and the test standards are given in full, so any of them can be checked with the issuing body before you specify.

Management systems

ISO 9001:2015 & ISO 14001:2015

Certificate: 73025Q05190113R1S · 73025E05190046R1S
Holder: شركة Shenzhen Helian Electronics Co., Ltd.
Scope: R&D and sales of LED lighting fixtures (export)
Issued: 12 Jun 2025 — valid to 16 Jun 2028
Body: Shenzhen Zhonghuan International Certification Co., Ltd

CE — on the profile itself

LED PROFILE, EMC and LVD

EMC cert.: XDD04260780041502FDC
EMC standard: EN IEC 55015 · EN IEC 61547 · EN IEC 61000-3-2 · EN 61000-3-3
LVD cert.: XDD04260780041501FAC
LVD standard: EN IEC 60598-1:2024/A11:2024
Issued: 15 Apr 2026 · BST Testing (Shenzhen)

Material compliance

RoHS · REACH · diffuser

Profile RoHS: report TQT0780K01EC (IEC 62321 series)
6063 aluminium: separate RoHS and REACH declarations
PC diffuser: SGS RoHS to EN / IEC 62321
PMMA diffuser: REACH SVHC declaration

Design rights

25 patent certificates

Invention patent: intelligent control method for luminaires
Profile line light: ZL 2018 2 1588485.0 · freely joinable
Anti-glare line light: ZL 2017 2 0569226.2
Ceiling wall-washer: utility model + design patent
Also: design patents and an EU design registration

GATE 0%d Incoming material Incoming inspection standard and a receiving inspection record, per delivery.
GATE 0%d First article First-article approval sheet held before a run is released.
GATE 0%d Ageing & light-up A written ageing specification plus a batch ageing and light-up record.
GATE 0%d Outgoing inspection Dedicated outgoing inspection reports for the extruded profile and for the diffuser.

Assembly lines building LED profiles and linear lights at Shenzhen Helian Electronics — Assembly floor in Shenzhen

Cutting profile to length

Building up a linear profile

Photometric test room with an integrating sphere, used for routine checks on finished profiles — In-house test room

The reception and showroom of Shenzhen Helian Electronics in Bao an District, Shenzhen — Shenzhen Helian Electronics

Recessed LED ceiling profiles shown as a finished ceiling line in the showroom — Profile ceiling in the showroom

07 / ORDER

What to send us, and what you get back

Most ceiling details are settled on the drawing, not on a phone call.

STEP 01 Send the ceiling detail
A section sketch, a photo of the reveal, or just the pocket depth and the strip you plan to use.
STEP 02 We match it to a section
We check the tooling we already run before proposing anything new — most details map onto an existing profile.
STEP 03 You get the drawing
The dimension drawing for the matched model, with W, H and the strip width it accepts, so you can check the cut-out.
STEP 04 Sample, then order
Cut lengths and finishing are confirmed against the drawing before anything goes to production.

08 / FAQ

What buyers ask before specifying this group

The questions that come up most often before a run is signed off.

What is the difference between a lens and a diffuser?

A diffuser spreads the output to remove the appearance of individual LEDs. A lens shapes it — narrowing the beam or directing it. They solve different problems.

Do you publish beam angles?

Angle options are listed per model, and the figure that matters is the lens and strip together. Ask for the combination you are specifying and we will give you the numbers for it — including the models already published with 30/60/90° optics.

Can a lens be used indoors?

Yes. A shaped cover is useful anywhere the run is visible and the output would otherwise read as glare.

Is the cover PMMA on all of them?

All six bodies in this group are built with a PMMA cover.

Can I fit the lens cover to a standard body?

No — the section and the cover are made for each other. If you need a lens, start from this group.

Do you offer different beam angles?

Lens bodies are offered with angle options — for example HL-A033 is listed with 30/60/90° optics. Which angle suits your run depends on the lens and the strip together, so ask for the combination you are specifying.

Can a lens cover be fitted to a standard body?

No. The section and the lens are made for each other, so if you need a lens, start from this group.

09 / MORE

Other ranges you may need on the same job

Most projects use more than one body. These are the ranges next to this one, plus the four mounting ranges.

Ceiling profiles