20,000 m², twelve lines, and the numbers broken down the way a buyer needs them
A single capacity figure is easy to quote and hard to use. Below is the per-family split we plan containers against, the processes that never leave the plant, and the questions we expect a serious buyer to ask about every line of it.
Monthly capacity by product family
These are the figures we work to when a container is being planned. The 500,000+ headline elsewhere on this site is the ceiling of this range, not a per-family promise.
| Product family | Monthly capacity | Primary standard |
|---|---|---|
| GFCI receptacles | 200,000 units | UL 943 |
| Standard receptacles | 500,000 units | UL 498 |
| USB receptacles | 200,000 units | UL 498 |
| Wall plates | 500,000 units | UL 514D, where applicable |
Wall switches are produced on the same lines as the standard receptacles. Whether a given line is dedicated to one family or shared across two is confirmed with your sales engineer.
The profile, and the check we would run on each line
The right-hand column is the question we would ask any supplier, including ourselves. Ask us for the answers in writing before a first order.
| Item | ShengYu | What a buyer should verify |
|---|---|---|
| Location | Zhejiang, China (Lishui) | Match the manufacturing address on the listing record against the address on the quotation and the country-of-origin marking. |
| Established | 2006 | Cross-check with the certification history and the business registration. |
| Facility area | 20,000 m² | Ask how much of it is production floor rather than warehousing and offices. |
| Workforce | Production staff, QC inspectors and in-house electrical engineers | Ask whether the engineers are direct employees or contracted in. |
| Monthly capacity | GFCI 200,000 · standard receptacles 500,000 · USB 200,000 · wall plates 500,000 | Ask whether the figure is available to your product line or shared across families and sales channels. |
| Standards and listings | UL 943 (Class A self-test GFCI) · UL 498 (receptacles) · UL 20 (snap switches) · UL 514D (wall plates, where applicable) | Ask for the standard that applies to the SKU you are quoting, not only the headline one. |
| Certification | UL & cUL | Verify in UL Product iQ before the first order — not after. |
| Quality system | ISO 9001 management system, in-line electrical functional testing on GFCI units, AQL sampling on receptacles and wall plates | Ask which AQL level applies and whether test records are kept per batch. |
| OEM and private label | Custom packaging, custom colours, private-label branding and faceplate customisation | Ask who is authorised to mark the device and who holds the listing. |
Audits and inspections we host
On-site visits are scheduled through your sales engineer, and the reports come back through the normal B2B channels rather than selectively.
- Pre-shipment inspections by customer quality teams or third-party inspectors
- In-process QC audits during a production run
- Social compliance audits
- Third-party inspection companies we work with: SGS, BV and Intertek
- Audit reports and corrective-action responses are returned in standard B2B timeframes
Four photographs from the plant
Factory photos are easy to stage and easy to fake. These four are the plant we are describing on this page — ask to see the same areas on a live video call before a first order.
The four questions we cannot answer with a number yet
A supplier profile that answers everything is usually a profile that made something up. These four are genuinely open, and they are on the list we are chasing.
What we quote rather than publish
Peak-season scheduling, capacity reservations for contract customers and tooling lead times depend on the order in front of us.
- Capacity is stated per month per family. Booking a slot for a specific container is a commercial conversation, not a catalogue line.
- Tooling for a private-label program changes the start date far more than the monthly capacity figure does.
The rest of the company section
Send the list, get the package back
Model list, quantities and project type is all we need to start. The quotation comes back in one business day with the specification sheet for each line item, the listing reference it holds and the packing detail for the DC — one document, not four.
WhatsApp / Mobile +86 159 5875 8125Prefer email? sales@syoutlet.com