Changzhenyuan
LED Power
Slim, aluminium-cased power supplies for 12 V and 24 V LED strip, in steps from 60 W to 400 W, packed in the company’s own blue “LED POWER SUPPLY” carton, plus small open-frame power boards — from a sole proprietorship registered in 2024 in Xiaolan town, Zhongshan. The registry read is done and the scope covers electronic-component, power-electronics and lighting manufacture and goods export. Everything a buyer would put in a specification sheet — efficiency, power factor, ripple, dimensions, warranty, test reports — has not been supplied yet, and this page says so.
Slim LED strip drivers and open-frame boards, as photographed.
Slim Aluminium-Cased LED Strip Power Supplies
Long, flat power supplies in an extruded aluminium channel with a vented aluminium lid, the format used to hide an LED-strip driver inside a cabinet, ceiling void or light box. The photographs show five housing lengths with the lids hand-marked 60 W, 100 W, 200 W, 300 W and 400 W; the housing grows with the rating. Each unit has a red three-way input terminal block marked L, N and earth on the lid, and a blue output block marked V+ and V− (two ways on the 60 W unit, four on the larger ones), with clear hinged covers. Thickness, length, weight and IP rating are not provided.
12 V and 24 V Output, 60 to 400 W
The company’s cartons carry a “12V/24V” tag and list 12V/150W, 24V/150W, 12V/200W, 24V/200W, 12V/300W and 24V/300W with tick-box dots; the housings add 60 W, 100 W and 400 W. That gives a constant-voltage range for 12 V and 24 V strip in six steps, though the two sources do not list exactly the same steps and no model list has been supplied — ask which voltage and wattage combinations are in production. Input voltage range, efficiency, power factor and ripple are not provided.
The Same Range as Bare Boards
One photograph lays five boards out of their lids beside the cased units, each seated in its aluminium channel: input common-mode choke, 400 V bulk electrolytic capacitors, switching transformer and output capacitors, with an output toroidal inductor on the largest board; one board carries a 2026.05.20 print. For a buyer who assembles drivers into a fixture or a branded housing, ask whether the boards are sold on their own, and how they are tested before shipping.
Small Open-Frame Power Boards
The company’s promotional poster, which is plainly a digitally produced image, presents a compact board as a “miniature industrial control board”; a board of the same small open-frame kind — transformer, safety capacitors, L and N input pads — also sits at the edge of one product photograph. Output voltage, current, size and intended equipment are not provided; treat this line as one to specify with the company, not one described here.
Own Retail Carton
A slim blue carton printed “POWER · LED POWER SUPPLY” with a 12V/24V tag, a wattage tick-list on the side and a row of application icons — ready for shelf or e-commerce packing. No brand name, certification mark or model number is legible on the carton in the photographs. Ask whether plain or buyer-branded cartons are offered.
What the registry confirms, and what stays open.
A Registered Sole Proprietorship — Said Plainly
The registry was read on 2026-09-22: this is 中山市长臻源电子厂（个体工商户）, registered as an individual business on 2024-05-07 — not a limited company. It has a declared fund of RMB 10,000 rather than share capital, no separate legal personality, and its operator carries unlimited personal liability. Paid-in capital and insured headcount are not published for this entity type. Contracts and invoices should name this entity exactly, including the 个体工商户 suffix; a search on the name without that suffix returned no record.
Scope Covers Power-Electronics & Lighting Manufacture and Export
The registered scope reads in part, verbatim: 电子元器件制造；电力电子元器件制造；照明器具制造；半导体照明器件制造；输配电及控制设备制造 — electronic-component, power-electronic-component, lighting-fixture, semiconductor-lighting-device and power distribution and control equipment manufacture — together with 货物进出口；技术进出口 (import and export of goods and technology). It also lists battery and battery-part manufacture and special electronic equipment, for which no product has been shown. The registered industry is computer, communication and other electronic equipment manufacturing.
What the Photographs Show — and What They Do Not
Four images were supplied. Three are ordinary photographs: the cased units with hand-marked ratings, the same range laid out as bare boards, and the retail cartons. The fourth is a promotional poster that appears to be computer-generated or heavily retouched; it is treated here as the company’s advertising, not as evidence of a product. No production floor, test bench, aging rack or packing line has been photographed, and the registered premises are a third-floor unit in a building in Lianfeng community, Xiaolan.
No Specification Sheet Yet
Efficiency, power factor, ripple and noise, input range, dimensions and thickness, weight, protection features, operating temperature, warranty and burn-in practice are all missing, as are MOQ, sampling time, lead time and output. On a product range where the same six wattage steps are sold by many suppliers, these figures are what separates one offer from another; ask for one sheet covering every voltage and wattage combination.
No Certificate or Test Report Supplied
No UL, ETL, CE, UKCA, SAA or CB document and no laboratory report has been provided, and no certification mark is legible on the cartons or housings in the photographs. For slim constant-voltage drivers, buyers in the United States generally expect an NRTL listing, and European buyers expect a declaration of conformity backed by safety, EMC and efficiency test reports for the exact model — see the FAQ.
Registry Risk Record
Self, peripheral and alert risk items are all zero as of 2026-09-22. Historical risk shows one item: the business was once placed on the list of abnormal operations for not filing its annual report on time; it no longer appears among current risk items. Administrative penalties, serious violations, dishonest-debtor and enforcement records are all zero.
What was checked — and what the check found.
The registry read is done. On 2026-09-22 the record for 中山市长臻源电子厂（个体工商户） was pulled from a Chinese enterprise-data source: an individual business registered on 2024-05-07, in business (开业), declared fund RMB 10,000, registered industry computer, communication and other electronic equipment manufacturing, registered at a third-floor unit on Lefeng North Road, Lianfeng community, Xiaolan town, Zhongshan. The scope carries electronic-component, power-electronic-component and lighting manufacture and the import and export of goods. The risk record shows one historical item and nothing current. This page does not carry the CMH Verified stamp, following the listing rule for sole proprietorships. No certificate or test report has been supplied, so none is shown. What would move the file forward: a specification sheet for every voltage and wattage step, a laboratory test report or certificate for the market you sell into, in this entity’s name and for the exact model, photographs of the production and test area, and a written answer on which entity exports and invoices.
A small Zhongshan power-supply workshop, labelled as one.
Changzhenyuan LED Power is the CMH listing name for 中山市长臻源电子厂（个体工商户）, an individual business registered on 2024-05-07 in Xiaolan town, Zhongshan, Guangdong, and listed here as what the registry says it is: a small sole proprietorship, not a limited company. It has no registered English name; “Zhongshan Changzhenyuan Electronic Factory” is a transliteration. An official registry read on 2026-09-22 confirms it is in business, with a declared fund of RMB 10,000 and a scope covering electronic, power-electronic and lighting manufacture and the import and export of goods.
What the company has shown is narrow and concrete: slim aluminium-cased power supplies for 12 V and 24 V LED strip in steps from 60 to 400 W, the same range laid out as bare boards, its own blue retail carton, and a promotional poster for a small open-frame power board. It has supplied no text, model list, specification sheet, certificate or test report, and no website or marketplace store was found for it in public search.
Three disciplines frame any engagement. Specification: get one sheet covering every voltage and wattage step before comparing offers. Evidence: ask for the test report or certificate your market requires, for the exact model and in this entity’s name. Entity: contract with the sole proprietorship by its full registered name and confirm the exporter of record. Contact routes through ChinaMakersHub; direct details are exchanged after first inquiry.
Registered 2024, on the record.
Registered in Xiaolan, Zhongshan
The business is registered as an individual business on 2024-05-07 with electronic-component, power-electronics, lighting and battery manufacture and goods and technology import/export in scope. Confirmed on the registry.
Annual-report listing, since cleared
At some point after registration the business was placed on the abnormal-operations list for a late annual report; the item now sits under historical risk only. The listing and removal dates were not retrieved.
Materials supplied to ChinaMakersHub
Four images: slim cased drivers marked 60–400 W, the same range as bare boards, the blue retail cartons and a promotional poster for a small power board. No text, model list, specification sheet or certificate.
Registry read — checks open
On 2026-09-22 ChinaMakersHub read the registry record and published its shape: a sole proprietorship whose scope covers manufacture and export, with one historical item on the risk record. Open and stated: the specification of every wattage step, test reports and certificates, MOQ and lead time, and the production site.
Where slim constant-voltage drivers go — and what each market asks for.
Cabinet, Shelf & Furniture Lighting
Slim drivers are chosen where the power supply has to disappear behind a kitchen cabinet, wardrobe or display shelf. Ask for the thickness of each wattage step before designing it in.
Cove, Ceiling & Light-Box Installations
Longer 200–400 W units for runs of 24 V strip in coves, suspended ceilings and signage light boxes; confirm the derating and whether the housing is rated for enclosed or ventilated spaces.
US & Canadian Projects
For installed lighting, inspectors and contractors generally expect an NRTL listing (UL, ETL or similar) on the driver; none is on file. Plan the first order as a sample-and-certify step rather than a shipment.
EU & UK Buyers
A separate LED control gear needs a declaration of conformity under the low-voltage, EMC and RoHS directives and must meet the ecodesign efficiency floor for its wattage; ask for the test reports behind it.
Australia & New Zealand
Power supplies for lighting are in-scope electrical equipment: a certificate to AS/NZS 61347.2.13, registration by the responsible supplier and the RCM mark are needed before sale.
Fixture Makers Buying Boards
Lighting and signage assemblers who fit a driver board into their own housing; ask whether the bare boards shown are sold separately and what incoming and outgoing tests they pass.
Sourcing guides for this category
Importing from China: The Compliance Checklist by Market
How to Read a China Certificate of Conformity
What Documents to Request From a Chinese Supplier Before Your First Order
PCBA Testing in China: ICT, Functional and Burn-In
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Frequently Asked Questions
What does Changzhenyuan make?
Slim, aluminium-cased constant-voltage power supplies for 12 V and 24 V LED strip, photographed in steps marked 60, 100, 200, 300 and 400 W, with 150 W also printed on the carton, packed in a blue “LED POWER SUPPLY” carton; the same range photographed as bare boards; and small open-frame power boards. No model list or specification sheet has been supplied.
Is it a factory or a trading company?
It is an individual business (个体工商户), a sole proprietorship, whose registered scope includes the manufacture of electronic and power-electronic components and lighting — so manufacturing is within what it is registered to do. The photographs show finished units and bare boards on a bench; no production line or test area has been photographed yet, and the registered premises are a third-floor unit. Ask to see the soldering, assembly and burn-in area.
Is this listing CMH-verified?
No. The registry read is done and confirms the entity, its status and a scope covering manufacture and export, but sole proprietorships are listed with checks open rather than with the CMH Verified stamp. Nothing about product performance, safety or capacity has been verified, because no document covering those has been supplied.
Do these drivers need UL in the United States?
There is no single federal law that makes every product carry UL. In practice two rules make a listing necessary for installed lighting: the National Electrical Code requires Class 2 power sources for lighting to be listed, and OSHA accepts electrical equipment in workplaces only when approved by a nationally recognised testing laboratory. Contractors, inspectors and most distributors therefore ask for a UL, ETL or equivalent listing. Separately, FCC Part 15 rules on unintentional radiators apply to a switching power supply. The US Department of Energy’s external-power-supply efficiency rule does not apply: it excludes power supplies designed exclusively to power LEDs for illumination.
What is needed for the EU and the UK?
A declaration of conformity under the low-voltage, EMC and RoHS directives, an economic operator established in the EU, and compliance with the ecodesign rules for separate LED control gear (Regulation (EU) 2019/2020), which set a minimum full-load efficiency by wattage — about 85.7% at 60 W rising to about 90.4% at 400 W — and a standby limit of 0.5 W. Great Britain continues to accept the CE marking alongside UKCA. None of the supporting test reports has been supplied.
Can it export in its own name?
The registered scope includes the import and export of goods, so export is within its registered activities. Whether the business has completed customs registration as a consignor has not been checked; ask which entity will appear as exporter and on the invoice.
What are the MOQ, sampling and lead times?
Not provided. Nor are output, headcount or floor area. Ask for all of them together with the specification sheet.
What is not confirmed yet?
Everything beyond the registry record and what can be seen in three photographs: the model list, input range, efficiency, power factor, ripple, dimensions and thickness, weight, protections, warranty, any certificate or test report, MOQ, lead time, output and the production site. The two sources for the wattage steps (housing marks and carton print) do not list exactly the same steps.
Talk to Changzhenyuan LED Power directly.
Send the output voltage (12 V or 24 V), the wattage steps you need, the quantity, the destination market and whether the units go into retail packaging or a lighting project. In the same message, ask for the specification sheet of each wattage step (efficiency at full load, power factor, ripple, dimensions and weight, hold-up and protection features, warranty), the test report or certificate that your market requires in the name of the company you buy from, and which entity will export and invoice. None of those is confirmed on this page. ChinaMakersHub will route the request.