When sourcing LED lights from China, you cannot inspect every order in person. Without proper quality control, factories may substitute materials or ship low-quality products. Here is the 6-step QC process Lightstec uses before every shipment.
6 Inspection Steps
Before Shipping
Why Quality Inspection Matters
When you source LED lights from China, you cannot physically check every order. Without quality inspection, many risks arise — factories may use different materials, produce lower-quality units, or make assembly errors.
Pre-shipment inspection lets you verify: production process, assembly quality, material quality, and packaging. Catching issues before shipping saves time, money, and reputation.
Lightstec follows a standardized 6-step QC process for every order. Below is exactly what we check before your Strisce luminose a LED, luci lineari, E profili in alluminio leave the factory.
6-Step LED Quality Inspection
1Product Appearance
- ✓Surface is clean and free of debris
- ✓No scratches, dents, or blemishes
- ✓Paint/coating color matches the approved sample
- ✓Material matches the sample specification
- ✓Dimensions match the requested specification
All findings are recorded in the QC report.
2Electrical Test
- ✓LED light powers on correctly
- ✓Input voltage matches the rating (12V / 24V / 110V / 220V)
- ✓Power consumption is within specified range
- ✓No flickering or abnormal behavior
3Light Source Test
- ✓Color matches order (Red, Yellow, Blue, Amber, Green, Pink, etc.)
- ✓Color temperature verified (1800K, 2200K, 2700K, 3000K, 4000K, 5000K, 6500K, 7000K)
- ✓Shade consistency across the batch
- ✓No color variation between units
4Brightness Test
- ✓Lumen output matches the approved sample
- ✓Same power rating = same brightness level
- ✓Brightness consistency across the batch
- ✓No dim or over-bright units
5Beam Angle Test
- ✓Beam angle matches specification (for downlights, wall washers, floodlights)
- ✓Lens correctly installed and aligned
- ✓Light distribution is even and as designed
- ✓No hotspots or dark spots
6Label & Packaging
- ✓Product label: Item No., Logo, Wattage, Input Voltage, Color Temperature
- ✓Package label matches product contents
- ✓Packaging is secure and suitable for international shipping
- ✓Accessories (connectors, screws, manuals) included as specified
Lightstec QC Standard: Every inspection step is documented in a formal QC report with photos. We share the report with clients before shipment, so you know exactly what is being sent. For large orders, we also support third-party inspection (SGS, BV, Intertek) at the client's request.
Need a Supplier You Can Trust?
Lightstec performs 6-step quality inspection on every order. Get your QC report before shipment — no surprises, no quality risks.
Informazioni sull'autore
Jerry Hu
Fondatore di Lightstec. Laurea in ingegneria. Oltre 13 anni di esperienza lavorativa nel settore dell'illuminazione a led. Familiarità con la produzione di prodotti per l'illuminazione a led. Questo blog condivide le tue conoscenze e soluzioni nell'illuminazione a led. Benvenuto nell'approvvigionamento di luci a led dalla Cina.
Scopri di più lezioni guidate da professionisti che meno persone ti raccontano prima di commettere errori.
We have buy some led products from China. Can you check for us ?
Hi Georg,we can offer checking service for you .
We Control The Production Technical Proficiency
In qualità di azienda professionale produttrice di strisce luminose a LED in Cina, Lightstec comprende le vostre esigenze di illuminazione e le fornisce in modo competente. Utilizziamo LED di alta qualità e le più recenti macchine SMT giapponesi per garantire una produzione di strisce LED di qualità.
Controllo di qualità
Noi di Lightstec prendiamo molto sul serio la qualità. I nostri esperti eseguono controlli di qualità durante tutto il processo di produzione delle strisce luminose a LED. Ciò ci consente di fornire prodotti con un tasso di guasto inferiore all'1‰.
Ciao Jackey, grazie per le tue informazioni.
1. Inspection – process control, functional test, reliability test & PPAP III documents available.
2. In house making to reduce lead time and consolidate components which will create added value & shipment to market demand.
3. Competitive pricing and minimal tooling cost.
4. QC process improvement services:
˙ Special process validation
˙ Capability Studies
˙ SPC Data
˙ Value engineering to reduce manufacturing cost
˙ Inventory Management (KANBAN sizing, JIT Shipments)
˙ Gage R & R
˙ ISO 9001: 2015
Our CNC machinin