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 · Bulbs & Lamps

LED bulb PCBs —
round, star, or DOB.

Round and star MCPCBs for LED bulbs and lamps — with driver-on-board (DOB) or external-driver options, engineered to move heat into the housing and hold lumen output over life.

Request a quote Discuss your design
Round / star MCPCBDOB or driverAC-direct optionAluminum / copper
Round / star MCPCBPCBSync
LED bulb PCB — round / star
Round·starBoard shapes
DOBDriver-on-board
1–200WLamp range
up to 4 ozCopper
100%Electrically tested
What it is

PCBs for LED bulbs and lamps

An LED bulb PCB carries the LEDs (and sometimes the driver) inside a lamp. Because the board also has to move heat into the bulb housing, most are round or star-shaped aluminum MCPCBs; compact or higher-power lamps step up to a copper core.

Two design routes exist: driver-on-board (DOB), where an on-board linear IC runs the LEDs straight from AC for a smaller, cheaper lamp; or an external constant-current driver for tighter control. We build both, with surge protection for DOB. The round outline is shared with our round LED PCB and downlight work.

Round & starClassic lamp board shapes
DOB optionAC-direct, no external driver
Heat into housingMCPCB spreads to the shell
Driver choiceDOB or constant-current
Design tips

Designing a reliable bulb board

Pick DOB vs driver

DOB shrinks cost and size; an external driver gives tighter current control and dimming — choose by product tier.

Protect DOB designs

Add a TVS/MOV plus fuse for surge and over-voltage so AC-direct lamps survive the grid.

Size the LED string

Series strings sized to driver voltage and LED Vf (≈2.8–3.4 V white); balance strings for even current.

Apply the 3W rule

Trace spacing ≈3× trace width and 2 oz copper on power traces to limit heating and voltage drop.

Spread the heat

Aluminum/copper base plus good board-to-housing contact protects lumen maintenance.

Plan mounting & wire

Centre wire hole, mounting features and optical keep-outs sized to the housing.

Applications

Where LED bulb PCBs are used

A-series bulbsStandard household lamps
Corn lampsHigh-output retrofit
Candle & G-seriesDecorative lamps
SpotlightsMR16 / GU10 heads
Tube & T-bulbsLinear lamp boards
Specialty lampsCustom OEM lamps
Specifications

LED bulb PCB capabilities

ShapeRound / star / linearCustom outlines
BaseAluminum / copper / FR-4MCPCB or rigid
DriverDOB or externalLinear IC or CC driver
Copper1–4 ozPower traces
ProtectionTVS / MOV / fuseSurge for DOB
MaskWhiteReflective
Why PCBSync

Lamp boards that last the lamp

A bulb is only as reliable as its board and driver. We give DFM feedback on string layout, DOB vs driver, surge protection and thermal contact, then build and test — AOI, electrical test and lab checks through our PCB laboratory — from prototype to high volume.

  • DOB or driver — AC-direct or constant-current.
  • Surge protection — TVS/MOV + fuse on DOB.
  • Round/star/custom — any lamp outline.
  • Heat to housing — MCPCB + good contact.
  • Proto to volume — scale with one partner.
Heat into the housingJunction heat conducted down to the heatsinkLED diePhosphor / lensSolderDielectricAluminum baseHeatsinkLamp thermal path
Start your project

Talk to an LED bulb PCB engineer

Send your lamp type, wattage and driver choice and we'll reply with feasibility and a quote — usually within 24 hours.

  • Lamp & wattage — A-series, corn, spot, tube.
  • Driver — DOB or external driver.
  • 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 designAluminum PCBMetal-core base boardsSMD LED PCBPackage & footprintLED Downlight PCBRecessed modulesCustom LED PCBBuilt to your specLED PCB OverviewAll LED board types
Answers

LED bulb PCB — FAQ

Most LED bulbs use a round or star-shaped aluminum MCPCB so heat from the LEDs spreads into the bulb housing. Higher-power or compact lamps may use a copper core; very cheap lamps sometimes use FR-4 for low-power designs.

DOB runs the LED string directly from AC mains using an on-board linear driver IC, with no separate external driver. It makes the bulb smaller and cheaper; we add surge protection (TVS/MOV + fuse) for reliability. We also build versions for an external constant-current driver.

LEDs are usually wired in series strings sized to the driver voltage and LED forward voltage (≈2.8–3.4 V for white). A common rule is to space LEDs to isolate heat and apply the 3W rule — trace spacing about 3× trace width — with 2 oz copper on power traces.

Round, star, linear and custom outlines, from small candle/G-series discs to larger A-series and corn-lamp boards, with centre holes for wiring and mounting features for the housing.

Yes — turnkey fabrication, LED sourcing, SMT assembly and testing. See LED PCB assembly.

Let's build your LED bulb PCB.

Round, star or DOB — lamp boards engineered to move heat and hold output over life.

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.