Low Voltage Transformer Manufacturer
Based in Yueqing, China — the heart of the country’s low voltage electrical industry. We manufacture control transformers, step up & step down transformers and variable transformers for distributors, OEMs, panel builders and importers. Custom voltage, enclosure and OEM branding, factory-direct prices and 15-25 day delivery.
Our Product Range
Pick your product family by application — step up & step down, control, variable or the full catalogue.
Step Up & Step Down Transformer
110V/220V/380V conversions for international appliances, machinery and OEM panels.
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Control Transformer
TC-1000 and TC-D500 series for industrial control systems, PLC cabinets and machine tools.
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Variable Transformer
Adjustable variacs for lab testing, calibration and industrial voltage regulation.
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View All Products
See the full transformer range with specs, voltages and OEM options.
Open catalogue →Hot Products
Our best-selling low voltage transformers - factory-direct, MOQ from 1 pc, stock units ship in 3-5 days.
ST-2000 Step Down Transformer
220V to 110V, 2000VA with built-in RCD - our most popular export model.
DT-1000VA Step Up & Down
Automatic dual-direction converter, 1000VA, copper winding, fuse protection.
DT-1500VA Step Up & Down
1500VA dual-direction, ideal for mid-size household and tool loads.
STU-3000 Step Up & Down
3000VA universal converter for air fryers, microwaves and small AC units.
View All Models We Build
Browse every model with specs and OEM options — all built to order in our Yueqing factory.
Industry Solutions
Voltage conversion answers for the four markets we serve most.
Household Appliances
Run US 110V kitchen and home appliances on 220V mains across the Middle East, Africa and Southeast Asia.
Sizing guide →CNC & Industrial Machines
Control transformers for machine tools, PLC cabinets and panel builders - reliable for daily start-up surge.
CNC guide →Lab & Test Equipment
Stepless adjustable AC voltage for laboratories, QA lines and industrial testing.
View variacs →OEM & Private Label
Build your own brand: custom voltage and enclosure from 10 pcs, free label design, printed cartons from 1,000 pcs.
OEM details →Why Buy Directly from Us
We are the factory - not a trading company. That changes everything.
Factory Direct
Competitive pricing without middleman markup.
Custom Made
Voltage, capacity, enclosure and branding customization.
Certified Quality
CE, RoHS and ISO9001 compliant production lines.
Fast Delivery
Stock units dispatch in 3-5 days; wound-to-order production 15-25 days.
Certifications & Compliance
Every unit leaves our factory with documented conformity - so your goods clear customs without argument, and your buyers can verify quality before they commit.
- CE-LVD 2014/35/EU · Low Voltage Directive conformity for ST / DT / TC series, 100VA–10kVA.
- CE-EMC 2014/30/EU · Electromagnetic compatibility, tested and documented.
- RoHS compliant · Restricted-substance controlled materials and production.
- ISO 9001 aligned · Quality system covering winding, assembly and 100% final testing.
IEC / VDE reference standards and other documents available on request.
Frequently Asked Questions
Straight answers on MOQ, lead time, OEM and transformer sizing from our factory team.
What is the minimum order quantity (MOQ)?
Stock 110V/220V units start at 1 pc, and you can mix wattages in one shipment. Custom voltage is 10 pcs per spec, custom sockets 50 pcs, and a printed colour box 1,000 pcs. Sample orders are welcome first - sample cost is deducted from your first bulk order.
How long is production and delivery?
Stock units ship in 3-5 days. Samples take 5-7 days, and wound-to-order production is 15-25 days after deposit, then sea or air freight to your port.
Can you make a custom voltage or OEM branded transformer?
Yes - we customize voltage, capacity and enclosure from 10 pcs per spec. Label changes are free with no extra MOQ, and a printed colour box starts at 1,000 pcs. OEM / ODM is our core business.
What certifications do your transformers hold?
Main series carry CE and RoHS compliance with an ISO 9001 aligned quality system. Market-specific documents (SASO, SONCAP, BIS) can be prepared.