Contact Sales & After-Sales Service

Contact & Quotation

  • Inquire: Call 0086-755-23203480, or reach out via the form below/your sales contact to discuss our design, manufacturing, and assembly capabilities.
  • Quote: Email your PCB files to Sales@pcbsync.com (Preferred for large files) or submit online. We will contact you promptly. Please ensure your email is correct.
Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.

Notes:
For PCB fabrication, we require PCB design file in Gerber RS-274X format (most preferred), *.PCB/DDB (Protel, inform your program version) format or *.BRD (Eagle) format. For PCB assembly, we require PCB design file in above mentioned format, drilling file and BOM. Click to download BOM template To avoid file missing, please include all files into one folder and compress it into .zip or .rar format.

Application · Downlights

LED downlight PCBs —
round engines, even light.

Round COB and SMD module boards for recessed downlights — aluminum or copper MCPCBs engineered to move the light engine's heat into the fixture and keep colour and output stable.

Request a quote Discuss your design
Round COB / SMD moduleØ 30–120 mmTunable / CCT optionsDOB or driver
Round downlight MCPCBPCBSync
LED downlight PCB — round module
Ø 30–120Module diameter
COB·SMDEngine options
TunableCCT-selectable
up to 4 ozCopper
100%Electrically tested
What it is

PCBs for recessed downlights

A downlight PCB is the round light-engine board inside a recessed ceiling fixture. It carries either a COB engine for a tight, controlled beam or an SMD array for a wider, even wash — on an aluminum or copper base that moves heat into the fixture heatsink.

Because the fixture is round, these share the geometry of our round LED PCB work — radial layout, centre wire hole, optical keep-outs and clean panelization. Good thermal contact between board and heatsink is what protects colour consistency and lumen maintenance.

COB or SMDTight beam or even wash
Round moduleMatches recessed fixtures
Engine to heatsinkMCPCB + good contact
Tunable whiteMulti-channel CCT
Design tips

Designing a downlight module

Choose the engine

COB for tight beams and glare control; SMD for a wider, uniform field and simpler dimming.

Match the fixture

Pick Ø 30–120 mm to the 2–8 inch fixture; place the centre wire hole and mounting early.

Nail the thermal contact

Maximise board-to-heatsink contact area and use a thermal pad — the fixture is the real heatsink.

Plan the optics

Keep-outs for the reflector/lens and an even emitter pattern for a clean beam.

Route tunable channels

For CCT-selectable boards, route warm/cool channels with balanced current.

Pick driver vs DOB

External constant-current for control, or DOB to drop the external driver.

Applications

Where downlight PCBs are used

Recessed downlights2–8 inch ceiling cans
Ceiling spotlightsAdjustable heads
Commercial fit-outOffice & retail
Gallery & accentTight-beam COB
Wall washersEven SMD wash
Cabinet & coveCompact modules
Specifications

LED downlight PCB capabilities

ShapeRound moduleCentre hole, mounts
EngineCOB or SMDTight beam / even wash
BaseAluminum / copperMCPCB
DiameterØ 30–120 mm2–8 inch fixtures
ColourFixed / tunableCCT-selectable
DriverDOB or externalCC driver
Why PCBSync

Downlight engines built to spec

Whether you need a COB spotlight or a wide SMD wash, we fabricate and (optionally) assemble the round module, give DFM feedback on thermal contact and optics, and verify quality through our PCB laboratory — prototype to volume across our capabilities.

  • COB or SMD — tight beam or even field.
  • Round module DFM — optics, mounting, panelization.
  • Thermal contact — board to fixture heatsink.
  • Tunable white — multi-channel CCT.
  • Proto to volume — one partner end to end.
Engine to heatsinkJunction heat conducted down to the heatsinkLED diePhosphor / lensSolderDielectricAluminum baseHeatsinkModule thermal path
Start your project

Talk to a downlight PCB engineer

Send your fixture size, engine type and beam target and we'll reply with feasibility and a quote — usually within 24 hours.

  • Fixture & diameter — inches / mm, mounting.
  • Engine — COB or SMD, wattage.
  • Quantity — prototype, pilot or production.

LED PCB inquiry

Reply within 24 hours · DFM included · NDA on request
or
Upload your Gerber files →
Submitting opens your email app with the details prefilled. Files are attached on the upload page.
Explore

Related LED PCB capabilities

Round LED PCBCircular board designCOB LED PCBChip-on-board enginesSMD LED PCBPackage & footprintAluminum PCBMetal-core base boardsCustom LED PCBBuilt to your specLED PCB OverviewAll LED board types
Answers

LED downlight PCB — FAQ

Most recessed downlights use a round MCPCB — aluminum for cost-effective heat spreading, or copper for high output. The board carries either a COB light engine for a tight beam or an SMD array for a wider, even wash, then mounts to the fixture's heatsink.

COB gives a single compact, high-flux source for tight beams and better glare control; SMD spreads many emitters for a wider, more uniform field and easier dimming. We build both — see COB LED PCB and SMD LED PCB.

Commonly Ø 30–120 mm to match 2–8 inch fixtures, with a centre hole or pads for the driver wire, mounting holes, and optical keep-outs for the reflector or lens.

Yes — multi-channel boards for tunable white (e.g. 2700–6500 K) or CCT-selectable designs, with the extra traces and pads routed on the round outline.

Yes — DOB modules run from AC without an external driver, and we also build versions for a separate constant-current driver. See LED bulb PCB for DOB details.

Let's build your downlight PCB.

Round COB or SMD modules — engineered for even light, good thermal contact and stable colour.

Request a quote Talk to an engineer

Contact Sales & After-Sales Service

Contact & Quotation

  • Inquire: Call 0086-755-23203480, or reach out via the form below/your sales contact to discuss our design, manufacturing, and assembly capabilities.

  • Quote: Email your PCB files to Sales@pcbsync.com (Preferred for large files) or submit online. We will contact you promptly. Please ensure your email is correct.

Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.

Notes:
For PCB fabrication, we require PCB design file in Gerber RS-274X format (most preferred), *.PCB/DDB (Protel, inform your program version) format or *.BRD (Eagle) format. For PCB assembly, we require PCB design file in above mentioned format, drilling file and BOM. Click to download BOM template To avoid file missing, please include all files into one folder and compress it into .zip or .rar format.