Sourcing model
Full turnkey
We source most or all parts from the BOM.
Lower day-to-day part control for the buyer.
Best when MPNs are complete and parts can be purchased.
PCB + SMT one purchasing path
Turnkey PCB assembly for LED aluminum boards
One purchasing path for aluminum PCB fabrication, SMT assembly, and optional component sourcing. The board specification and the assembly process are reviewed together, so LED lighting projects do not split across three suppliers.
One purchasing pathLED aluminum board focusBuyer-supplied LEDs welcome
Board spec and SMT should not be quoted as two separate jobs
An LED aluminum PCB is not a bare board plus a later assembly step.
Copper, dielectric, aluminum base, surface finish, LED package, solder paste, and reflow all affect the same build.
When one supplier makes the board and another mounts the LEDs, small file gaps show up late. Turnkey keeps those checks in one review before production starts.
Gaps this is meant to reduce
- LED polarity is unclear between the board drawing and the pick-and-place file
- Surface finish does not match the assembly schedule
- Thermal pad or stencil notes are missing until SMT starts
- A lighting test is expected, but it was never in the quote
Is this purchasing path a fit?
Turnkey is for one PO covering the board and SMT. Bare board or SMT-only stay on their own pages.
A fit if
- You manufacture LED lighting products on aluminum PCB
- You want one supplier for board, assembly, and optional parts
- The project can move from sample to repeat production
- Gerber, BOM, and quantity can be confirmed before production
Usually not a fit if
- You only need the bare aluminum board — use fabrication
- The board is already made and you only need SMT
- The project is multilayer FR-4, box-build, or a complete luminaire
- Functional testing is expected without a method or fixture
What this quote can cover
Turnkey here means one supplier coordinates the defined build. It does not mean every extra service is automatic.
Included when confirmed
- Single-sided aluminum PCB fabrication
- SMT assembly on LED / aluminum boards
- Optional component sourcing after BOM review
- Stencil preparation for the approved board
- Incoming, first-article, and visual inspection
- Packaging and shipment coordination
Not included
- Complete light fixtures or housing assembly
- Driver power-supply box builds
- Multilayer FR-4 or general consumer electronics PCBA
- Functional or lighting tests without a defined method
- Silent part substitution without written approval
| Scope item | Typical meaning |
|---|---|
| Board type | Single-sided aluminum PCB / LED lighting boards |
| Service model | PCB + SMT, with optional component sourcing |
| Typical sourcing | Partial turnkey — buyer supplies LEDs, factory sources the rest |
| Order type | Sample, small batch, and repeat production |
| Files for quote | Gerber, BOM, quantity, and which parts you will supply |
| Inspection | Incoming, first article, visual / process inspection |
| Testing | Only when method, fixture, and pass/fail rules are defined |
| Delivery | Assembled LED boards, packed to the confirmed packing note |
Who supplies the parts
Choose the model by sourcing responsibility, not by the word turnkey. For LED lighting, buyers often supply the LEDs.
Most common for LED
Partial turnkey
You supply LEDs or other approved parts; we source the rest.
You keep bin, brand, and optical control where it matters.
The usual model for LED lighting boards.
Sourcing model
Consigned
You supply the components; we fabricate and assemble.
Highest control over every part source.
Best when parts are already purchased or locked.
Typical LED project: you supply the LEDs
Lighting buyers often already have an approved LED brand, bin, and optical layout. In that case we fabricate the aluminum PCB, source passives if needed, and run SMT. You keep control of the light source; we keep board and assembly in one workflow.
If the BOM is complete and LEDs can be purchased, full turnkey can be reviewed. If the parts are already in your warehouse, consigned assembly is the cleaner path.
How a turnkey build is handled
The useful part is a defined aluminum PCB + SMT workflow, with sourcing and inspection confirmed before order.
1
File review
Gerber, BOM, quantity, and sourcing notes are checked as one package.
2
Aluminum PCB
The bare board is fabricated to the confirmed thickness, copper, and finish.
3
Component plan
We confirm who supplies LEDs and other parts before purchasing starts.
4
SMT assembly
Boards are assembled after stencil, polarity, and first-article checks.
5
Inspection
Incoming, first-article, and visual checks are done on the confirmed scope.
6
Pack and ship
Finished boards are packed and shipped after pre-shipment confirmation.
Typical boards this is for
LED source boards, modules, and lighting boards on aluminum PCB — not complete fixtures. The difference is one PO for board and SMT.
LED aluminum PCB checkpoints
Polarity, heat path, and solderability have to be confirmed before the first article. These are the points that usually change yield.
| Checkpoint | What to confirm |
|---|---|
| LED polarity | Silkscreen, CPL, and assembly drawing must show the same direction. |
| LED orientation | Rotation should be checked before the first article. |
| Thermal path | Board stack, LED pad, and dielectric affect heat transfer. |
| Surface finish | OSP, HASL, or another finish should be confirmed before SMT. |
| Solder paste / stencil | Paste volume matters on LED thermal pads. |
| Inspection scope | Visual or AOI rules should be named in the quote, not assumed. |
What to send for a quote
A complete package quotes the real work. Missing files create exclusions or extra back-and-forth. A short note is still enough to start.
| File / information | Why it matters |
|---|---|
| Gerber package | Latest revision only, including outline and solder mask. |
| BOM | Reference, MPN, package, quantity, and approved alternates if any. |
| CPL / pick-and-place | XY, rotation, and side — especially for LED polarity. |
| Assembly drawing | Placement, orientation, and special notes for LEDs or connectors. |
| Board specification | Thickness, copper, surface finish, and any panel notes. |
| Sourcing split | Which parts you will supply, especially LEDs. |
| Quantity / schedule | Sample, pilot, and mass-production quantities if they differ. |
| Test / packing notes | Only needed when a specific test or packing method is required. |
For parts list formatting rules, download our PCB assembly BOM template (.xlsx). To review RFQ factors and required documentation, see our PCBA quote checklist. Gerber files and BOM can be emailed directly to sales@luminapcb.com.
What affects the quote
Turnkey cost is not only SMT labor. Board spec, BOM, setup, inspection, and schedule all sit in the same number.
| Cost driver | What changes it |
|---|---|
| Aluminum PCB specification | Size, thickness, copper, finish, and panel use. |
| Component procurement | Part price, MOQ, availability, and who buys the LEDs. |
| SMT setup | Stencil, programming, and first-article preparation. |
| Part count and packages | More parts and tighter packages add assembly work. |
| Inspection and testing | Extra AOI, fixtures, or lighting tests add time. |
| Lead time | Expedited sourcing or production can add a premium. |
Sourcing rules
If we buy parts, the BOM still needs exact numbers. Substitution is not assumed.
- A description such as “white 2835 LED” is not enough for a controlled buy
- Exact MPNs should be listed, with approved alternates if substitution is allowed
- Long-lead or obsolete parts should be flagged before production starts
- No silent substitution — any change needs written sign-off
How to start
Scope is confirmed after we review the board files and BOM. Pricing and delivery are confirmed before order.
- 01
Send files
Gerber, BOM, quantity, and which parts you will supply.
- 02
Confirm scope
We confirm the sourcing model, inspection, and whether turnkey fits.
- 03
Quote and plan
Board, parts, assembly, and lead time are quoted as one package.
Need only one part of this?
Looking for fabrication or SMT only, rather than one purchasing path?
FAQ
Short answers before you send a project.
What does turnkey include here?
It is a purchasing model, not a separate factory line. For suitable LED aluminum boards, it can combine PCB fabrication, SMT assembly, and optional component sourcing under one quote. The quote should name what is included.
Can we supply the LEDs ourselves?
Yes. That is the usual path for lighting projects. You keep control of LED bin and brand; we coordinate the aluminum PCB, remaining parts if needed, and SMT.
Do you assemble complete lamps?
No. The service covers aluminum PCB boards and SMT assembly. Housings, lenses, and finished luminaires are outside the scope.
What files are needed for a quote?
Send Gerber files, BOM, quantity, and a note on which parts you will supply. Pick-and-place data, an assembly drawing, and board thickness/finish help when they are available.
Is full turnkey available on every project?
No. Component sourcing is confirmed after BOM review. If parts are unclear, long-lead, or customer-locked, partial turnkey or consigned assembly is usually the better fit.
Does turnkey include lighting tests?
Only when the test method, fixture, voltage/current, and pass/fail rule are defined before quotation. An undefined lighting test is not assumed.
How is this different from SMT assembly only?
SMT assembly is the mounting step. Turnkey is the buying path: aluminum PCB, optional parts, and SMT coordinated under one supplier so board spec and assembly are reviewed together.
Send the files for a turnkey review
Leave your name, email, and a short note. Email Gerber files and BOM to sales@luminapcb.com — the form does not accept uploads.