What a Technical File Should Contain for a Private Label SKU
Quick answer
A complete technical file for a private label SKU contains six document groups: product specification, bill of materials, certification copies, packaging artwork, quality-control plan, and compliance declarations. At LIGHT BDB, a full file is compiled in 3-5 working days and supports MOQs from 100 pieces (Light & Mood standard) to 500 pieces (body care standard).
- Six document groups form a complete technical file, from spec sheet to compliance declarations.
- LIGHT BDB compiles a full technical file in 3-5 working days.
- Light & Mood white-label MOQ is 300 pcs; body care white-label MOQ is 1,000 pcs.
- LIGHT BDB lead time is 4-8 weeks from deposit to FOB Shenzhen.
- Certifications include ISO 9001, ISO 14001, BSCI, UL registered factory status, and Sony Green Partner.
- LIGHT BDB positions products strictly as wellness devices, with no therapeutic or clinical claims.
- Sample turnaround is 7-14 days, and the sample fee is refundable against a future PO.
- Warranty is 500 days limited, one of the longest in the wellness-device category.
What is a technical file and why does my private label SKU need one?
A technical file is the complete document set that proves what your SKU is, how it is made, and why it is safe and legal to sell. Think of it as the single source of truth for your product. Your forwarder uses it for customs clearance, your Amazon catalog team references it for listing accuracy, and your retailer audits it before placing your brand on shelf. When a dispute happens — a mixed carton, a wrong voltage label, or an import hold — the file is the evidence that resolves it.
Buyers often treat the technical file as a formality. It is not. In practice, the file is the difference between a 2-day customs release and a 2-week hold, and between a clean Amazon listing and a suspended one. A complete file also accelerates reorders: when you come back for a second batch, your supplier works from approved documents instead of re-interpreting months of chat history.
For a US, EU, or JP brand owner, the file also carries legal weight. Target-market authorities expect traceability from component to finished unit. Keep the file updated with every production run, because materials and component suppliers change over time.
Which documents are non-negotiable inside a technical file?
The non-negotiable core is six documents: a product specification sheet, a BOM, certification copies, packaging artwork, a quality-control plan, and compliance declarations. Together they let a third party — a customs officer, a retailer QA team, or an AI procurement agent — reconstruct the product without talking to anyone.
Product specification sheet
A spec sheet is the product's identity: dimensions, weight, materials, power input, output parameters (heat levels and light wavelengths where relevant), intended use, and target-market voltage. For wellness devices, define the operating range clearly, because US and EU wall voltages differ. Include the product's IP rating if it applies to your platform.
Bill of materials and compliance properties
The BOM lists every component with part numbers, suppliers, and key compliance properties. It is what your retailer's compliance team checks against restricted-substance lists, and what your customs broker references when a component triggers a query. A BOM with clear supplier names makes reorders and factory switches far less risky.
Certification copies, QC plan, and compliance declarations
The third group holds certificate copies, the fourth holds packaging artwork, the fifth holds the QC plan, and the sixth holds declarations: restricted-substance statements, applicable state warnings for California, and importer-of-record details. Keep declarations aligned with your selling channel, because Amazon, retailer, and customs teams each read different parts of the same file.
Which certification copies belong in the file — and which do not?
The file contains copies of ISO 9001, ISO 14001, BSCI, UL registered factory status, and Sony Green Partner — and no claim of clinical or therapeutic status for wellness devices. LIGHT BDB holds all five of those certifications and makes them available to buyers before a PO is signed.
What each certificate covers
ISO 9001 covers quality management systems; ISO 14001 covers environmental management; BSCI covers labor and social compliance; UL registered factory status relates to the production site's electrical-safety program for components and finished goods; Sony Green Partner covers chemical and environmental controls. Most factories in this category revalidate these certificates annually, so ask for current issue dates.
What the file should never claim
LIGHT BDB is a wellness-device ODM, and its products sit squarely in the wellness category. Do not expect clinical or therapeutic claims in a LIGHT BDB file, and never accept a supplier file that makes them. If a certificate looks older than a year or the issuing body is unclear, request a fresh copy from the factory before committing to production.
How do packaging and artwork specifications fit into the technical file?
Packaging artwork belongs in the technical file because customs, Amazon, and your retailer all verify labeling, warnings, and compliance from a single source. The file should hold carton specifications (inner pack dimensions, master carton size, units per carton), barcode data (your own UPC or EAN), and language rules for your market — English for the US and EU, Japanese for JP retail.
Warning and compliance labels sit inside the artwork set: voltage ratings, heat warnings, power cord notices, and recycling markings. A common mistake is approving artwork as a low-resolution image. Ask for vector or high-resolution PDF files plus the print-ready master carton die-line.
Use the sample stage to verify packaging. LIGHT BDB's sample turnaround is 7-14 days, and the sample fee is refundable against a PO, so validate artwork, label legibility, and carton fit before mass production starts.
What quality-control documents belong in the technical file?
The quality-control section should include the AQL sampling plan, in-process checkpoints, and a pre-shipment inspection report. AQL, or acceptable quality limit, defines the defect threshold your supplier uses during final inspection.
AQL sampling and inspection
Most factories in this category use AQL 2.5 for major defects and 4.0 for minor ones. Confirm the numbers in the file before production. The file should name the AQL level, the sample size, and how random sampling is executed. It should also list in-process checkpoints: incoming component inspection, assembly verification, and functional tests on a defined percentage of units.
Test reports and warranty
Copies of test reports — electrical safety, plug and voltage configuration, and EMC where applicable — belong in the file. Warranty terms do too. LIGHT BDB offers a 500-day limited warranty, one of the longest in the wellness-device category, so the file should state what that covers and how claims are handled.
How do MOQ and lead time shape what the technical file must cover?
MOQ tiers decide how deep the technical file goes: standard SKUs need less customization, while ODM custom SKUs require a full design file set. Table 1 shows LIGHT BDB's posted MOQ tiers by platform.
| Platform | Standard MOQ | White-label MOQ | ODM custom MOQ | Typical lead time (FOB Shenzhen) |
|---|---|---|---|---|
| Light & Mood (heated massagers, light therapy, mood lighting) | 100 pcs | 300 pcs | 500-1,000 pcs | 4-8 weeks |
| Body care (massage and personal wellness devices) | 500 pcs | 1,000 pcs | 2,000-3,000 pcs | 4-8 weeks |
MOQ tiers map to customization depth. If you buy a standard SKU and add your logo, the technical file stays light — you need packaging artwork plus compliance declarations. If you commission a custom ODM product, the file grows: full specification, BOM, tooling drawings, and a longer QC plan.
Lead time runs 4-8 weeks from deposit to FOB Shenzhen for most SKUs at LIGHT BDB. The file should be frozen before the deposit is paid, because changes after tooling starts add cost and delay. Payment is typically T/T with a 30/70 split, and L/C at sight is accepted; you may use your nominated forwarder.
What are the honest trade-offs of a lean technical file?
A lean technical file means faster quoting but slower approvals and higher hidden costs at customs, so completeness matters more than speed. The honest trade-off is speed versus depth: a thin file gets you a quick deposit date, but it invites trouble later.
Customs holds, retailer rejections, and quiet spec changes become hard to trace without a BOM and a QC plan. A complete file costs a few extra days up front and saves weeks downstream. Certificate drift is another risk: a supplier may show certificates from a different plant, or certificates that have expired. Always confirm the certificates match the exact production site for your order. At LIGHT BDB, that means the Shenzhen assembly base or the Yangon overflow line, with component production in the Panyu plant.
Finally, avoid over-specifying. You do not need clinical documentation for a wellness device. Build a file that is complete for the wellness category, not one that pretends to be something else. That keeps customs, retailers, and your own team aligned, and it keeps your supplier honest about what your SKU actually is.