Custom PC & PMMA Lighting Profiles Manufacturer

Custom lighting extrusion profiles for LED manufacturers

PC and PMMA extrusion profiles, diffusers, lenses and light covers manufactured to your drawings, samples and specifications.

Request a Quote
Upload Your Drawing
2008Established
20+Extrusion & co-extrusion lines
ISO 9001Certified quality system
0–97%Tuneable transmittance

Lighting Extrusion Profiles Built Around Your Luminaire

We are not a general plastics extruder. Every profile we run is a lighting component – a diffuser, a lens, a cover or a housing – and the material, wall thickness, surface and optical behaviour are engineered around the luminaire it goes into.

LED Diffuser Profiles

Linear diffusers that hide the LED pitch while holding transmittance - frosted, matte, prismatic or embossed.

LED Lenses & Optical Profiles

Linear lens sections that shape the beam and control glare in linear and architectural luminaires.

Light Covers & Housings

PC and PMMA covers, tubes and troffer housings cut to length and packed for your assembly line.

Product Range

Start from the profile type you need, or send us a drawing and we will develop the section for you.

Custom Lighting Profiles

Profile sections developed from your drawing, sample or CAD file.

View details →

Custom LED Profiles

Extruded profiles for LED linear, strip and modular luminaires.

View details →

PC Lighting Profiles

Polycarbonate profiles where impact strength and heat resistance matter.

View details →

PMMA Lighting Profiles

Acrylic profiles chosen for clarity, transmittance and UV stability.

View details →

Linear Light Profiles

Continuous linear sections for architectural and commercial runs.

View details →

PC Light Covers

Polycarbonate covers and tubes for industrial and vandal-resistant fittings.

View details →

PMMA Light Covers

Acrylic covers with high light transmission and stable colour.

View details →

Optical Lighting Profiles

Sections engineered for beam control, diffusion and glare reduction.

View details →

Custom LED Diffuser Profiles

Diffusers tuned to hide LED pitch at a defined transmittance.

View details →

Custom LED Lenses

Linear lens profiles that shape the beam without secondary optics.

View details →

Lighting Tubes

PC and PMMA tubes and tube profiles cut to your length.

View details →

PC or PMMA - Choosing the Right Material

Material selection for lighting extrusion
Light transmittancePMMA reaches higher clarity and transmission; PC is slightly lower but still clear.
Impact resistancePC is far tougher - the default choice for covers, housings and industrial fittings.
Heat resistancePC holds shape at higher temperatures; relevant close to high-power LED boards.
UV / weatheringPMMA has excellent UV stability; UV-stabilised PC grades are available for exterior use.
Surface & finishBoth run clear, matte, frosted and prismatic; PMMA holds fine prism detail well.
Typical lighting usePMMA: diffusers, lenses, decorative covers. PC: covers, troffer housings, tri-proof fittings.

Where Our Profiles Are Used

Linear Lighting

Continuous diffuser and housing profiles for linear systems.

View details →

Architectural Lighting

Profiles for coves, facades and decorative runs.

View details →

Commercial Lighting

Retail, hospitality and showroom luminaires.

View details →

Industrial Lighting

High-impact covers for factories and warehouses.

View details →

Troffer Lighting

Troffer housings, lens plates and diffusers.

View details →

LED Strip Lighting

Profiles that house and diffuse flexible LED strip.

View details →

Office Lighting

Low-glare profiles for workspaces and meeting rooms.

View details →

Signage Lighting

Light boxes, channel letters and edge-lit signs.

View details →

From Drawing to Production

  1. Drawing review – we check the section, tolerances and optical targets for extrudability.
  2. Profile engineering – wall thickness, radii and material flow are balanced for stable extrusion.
  3. Material selection – PC, PMMA, co-extrusion or a specified compound.
  4. Tooling design – the extrusion die is designed for your section.
  5. Mould manufacturing – die and calibration tooling machined in-house.
  6. Prototype – first-off sections produced for your approval.
  7. Extrusion – production run on a matched extrusion line.
  8. Cutting – cut to length, drilled, notched or machined as required.
  9. Inspection – dimension, appearance and optical checks before release.
  10. Packaging – protective film, bundles and cartons to your specification.

Manufacturing You Can Audit

We run our own extrusion and co-extrusion lines and machine our own tooling, which is what makes short development cycles and small-batch custom profiles practical rather than theoretical.

  • Extrusion and co-extrusion of PC, PMMA and PC/PMMA combinations
  • In-house tooling design and die manufacturing
  • Colour and transmittance matched to RAL / Pantone and optical targets
  • Matte, glossy, frosted, prismatic and embossed surfaces
  • Cutting, machining and packing to your assembly requirements
  • ISO 9001:2015 certified quality system
Upload Your Drawing

Who We Supply

We work with OEM and ODM lighting manufacturers, luminaire brands, distributors and engineering contractors who need a profile that does not exist in a catalogue.

Frequently Asked Questions

A drawing or sample is ideal. If you have neither, send the profile cross-section sketch with dimensions, material (PC or PMMA), colour and transmittance target, length per piece, application and estimated annual quantity. Our engineers confirm feasibility and tooling before quoting.
For a new custom profile the tooling is developed for your project and production starts from a low-volume batch. Standard repeat profiles start from small batch quantities; exact MOQ depends on profile weight and material – send the drawing and we confirm.
Yes. Send a sample piece or a dimensioned drawing and we reverse-engineer the section, material and optical behaviour, then produce prototypes for your approval before tooling is finalised.
PMMA (acrylic) gives higher light transmittance and better UV stability for diffusers and lenses. PC (polycarbonate) gives far higher impact resistance and heat resistance for covers, housings and industrial luminaires. We also run PC/PMMA co-extrusion when you need both.
Transmittance is tuneable across a wide range, with matte, frosted, prismatic and embossed surfaces used to control glare and beam spread. Tell us the target transmittance and UGR requirement and we compound and test to match it.
Yes. Customer drawings and tooling are treated as confidential and we are happy to sign an NDA before you release files.

Technical Guides

Eight write-ups on the decisions that come before an order: which material, what the drawing has to show, which tolerances hold, and where the cost and the weeks go. Written by the people who run the dies.

Material selection

PC vs PMMA Lighting Profiles: How to Choose

Impact strength against 2-5 points of transmission, and how to settle it before a die is cut.

 Design

How to Design a Custom LED Profile

Wall thickness, snap fits and the section details that decide whether a profile extrudes cleanly.

 Drawing input

Lighting Profile Drawing Checklist

What has to be on the drawing to quote and tool without a second sample round.

 Tolerance

LED Profile Extrusion Tolerance: What ±0.1 mm Buys

Which dimensions hold tight on an extruded section and which drift, measured on the first-off.

 Sampling

Extrusion Sample to Production in 6 Weeks

The sample-to-mass-production sequence, and where the weeks actually go.

 Cost

Why Lighting Cover Quotes Vary by 30%

Tooling, resin, run length and packing - what actually moves a lighting cover quote.

 Failure modes

Why LED Diffusers Turn Yellow

UV, heat and material grade: the three causes, and which one you can design out.

 Optics

Custom LED Lens vs Diffuser

Beam shaping against glare control, and when one profile has to do both jobs.

 Tooling

Extrusion Tooling Cost: What You Pay For

Die design, steel, trial runs and a maintenance reserve — and who owns the die at year three.

Optics

Custom Extruded Lens vs Secondary Optics

One optical axis repeated forever, or a placed optic per emitter. Where each one actually wins.

Optics

Diffuser or Lens for Linear Fixtures

Hiding the emitter costs light. Shaping the beam costs uniformity. How to trade the two.

Batches

Colour Consistency Across Batches

What a ΔE target actually controls on an extruded profile, and what it leaves out.

Send us your drawing or sample

Our engineers review geometry, material and tooling feasibility and come back with a profile proposal and quotation.
Request a Quote

Or email your drawing to info@leddiffuserfactory.com · WhatsApp +37259205909 · WeChat +8615867897761

Scroll to Top