Inside the plant
Inside the plant: how a lamp is built, tested and packed
Assembly, charging test and packing run under one roof in Shenzhen. There is no third party between the coil and the carton, which is why the charging test result on the report is the same unit that ships.
The floor
Three lines, split by product family rather than by customer. A lamp line does not stop to set up a stand, which is what keeps the 7–10 day window real on mixed orders.
Six stations, in order
A unit that fails at station three does not travel to station four. The test result is recorded against the carton, not against the batch.
01
Incoming inspection
Housings, shade fabric, coil modules, speaker modules and adapters are checked per batch before they reach a line.
02
Assembly
Housing, coil, speaker, PCB and cable assembled and routed on three lines split by product family.
03
Charging test
Every unit is load-tested on the coil at 5W, 7.5W and 15W, with a foreign-object check and a thermal reading.
04
Light test
Lumen output, colour temperature and CRI checked against the model spec, and the three colour temperatures verified where fitted.
05
Packing
Retail carton, manual, accessories and master carton, with shipping marks applied in-house.
06
Pre-shipment
AQL 2.5 inspection with photos, issued as a report before the goods leave the plant.
Four checkpoints, not one
A single final inspection finds the problems that are cheap to fix and misses the ones that are expensive. Each checkpoint has its own sign-off.
Incoming
Component batches checked against drawing and supplier certificate before release to the line.
In process
First-article approval at line start, then hourly checks on torque, cable routing and light output.
Finished goods
100% charging and lighting test. Nothing is packed without a pass on both.
Outgoing
AQL 2.5 sample per carton, photographed, with the report issued before shipment.
What we actually measure
The charging test is the one that matters, because a magnetic pad that reads 15W on the box and 7.5W on the phone is the most common complaint in this category.
| Test | What it checks | Frequency |
|---|---|---|
| Coil load test | Output power at 5W, 7.5W and 15W, plus surface temperature after 30 minutes | Every unit |
| Foreign object detection | Shut-off response with a metal object between pad and phone | Every unit |
| Light output | Lumen, colour temperature and CRI against the model specification | Every unit |
| Ageing run | Four hours continuous at rated load, checked for drift and heat | Sample per batch |
| Drop test | 1 m, six faces, in the retail carton | Sample per batch |
| Cable pull | 30 N on the adapter tail, checked for conductor damage | Sample per batch |
Capacity and lead time
Stock-model orders are quoted at 7–10 days from artwork approval. Custom housing colour and new packaging are confirmed case by case, because the paint batch and the die-cut are what set the date, not the assembly line.
| Line | Daily capacity | Models | Count |
|---|---|---|---|
| Desk lamps | 6,000 / day | W02291–W02297, W02326 | 8 models |
| Charging stands | 7,000 / day | W02316–W02333 | 11 models |
| Vanity & ambient | 2,000 / day | W02294, W02295 | 2 models |
| Plant total | 15,000 / day | Mixed orders share the same window | 21 models |
Booking an audit
Buyers visit, or send an inspector. Both are normal, and neither requires a purchase order first.
Five working days
That is the notice we ask for, so the line you want to see is running that model on the day you arrive rather than being set up for a photo.
Documents in advance
Line layout, process flow, equipment list and the current certification file are sent before the visit, not handed over on the day.
Third-party inspections
SGS, Bureau Veritas, TUV and Intertek are all welcome. We book the slot and provide the sample room and the records they ask for.
Certifications
Registered to the factory
Qi2 and Qi2.2 are the ones that matter in 2026 — most suppliers advertising "magnetic charging" hold neither. Ours are registered to the plant rather than rented from a partner, so the certificate number can be looked up in the WPC product database before you place a deposit, and it stays valid when you put your own brand on the product.
Where the parts come from
Metal, plastic, fabric and cartons all come from within a two-hour drive, which is what makes a 500-piece colour change practical rather than a six-week project.
Metal and hardware
Stamped and CNC parts from suppliers in Shenzhen and Dongguan, anodised and powder-coated to the approved colour.
Plastic
Housing moulding and insert tooling from two mould shops we have worked with since the first production run.
Shade fabric
Weaving and print from a textile supplier in Foshan; swatches approved physically before the run.
Cartons and print
Die-cutting, printing and manual binding handled locally, with a white sample before every print run.
Questions about the plant
If yours is not here, ask it with the audit request — it will be answered in the same reply.