Harlon switching power supply production line in Wenzhou, Zhejiang
ISO 9001 · SGS On-site Verified

Industrial Switching Power Supply 10W–3000W

Factory-direct AC/DC, DIN rail, DC-DC & LED driver solutions for OEMs and distributors.

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SMT automatic assembly line for power supply PCBA
18 Years OEM Experience

Built to Your Spec, Your Label

Full, sample-based and design-based customization with in-house engineering.

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Harlon power supply product range for global distribution
Worldwide Partnership

Distributors Wanted Worldwide

Stable supply, export-ready documentation and responsive support across 5 regions.

Become a Partner About Harlon
Since 200719 years in power electronics
10,000 m²Total factory floorspace
10+ LinesSMT, insertion & wave soldering
SGS VerifiedOn-site supplier assessment
Product Lines

Power Supply Product Lines for OEM Builders & Distributors

Five core families cover most industrial, lighting and automation power needs — each available as standard catalog models or customized to your voltage, current, connector and label requirements.

LRS Series Ultra-Slim AC/DC

30 mm low-profile enclosed units for LED signage, CCTV, automation cabinets and 3D printers.

35W–350W85–264VAC
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High Power SE / SP SMPS

Fan-cooled high-wattage units for machinery, battery charging, telecom and test benches.

Up to 3000WPFC options
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DC-DC Converters

Step-up and step-down conversion for vehicles, solar storage, battery systems and telecom.

Buck / BoostCustom ratios
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Waterproof LED Drivers

Sealed, potted drivers for outdoor lighting, façade, landscape and channel-letter signage.

IP-ratedCV / CC
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MDR / EDR / NDR DIN Rail

TS-35 rail-mount supplies for control panels, PLCs, building automation and instrumentation.

10W–480WTS-35 rail
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Model Selection

LRS Series Selection Guide: Compare Key Parameters

Pick the right wattage before you request samples. The table lists typical parameters engineers ask for first — output, input range, efficiency, footprint and protection.

LRS Series

LRS-35 · 35W Single Output

Compact choice for LED strips, small displays, sensors and access control.

Typical values for reference. Final ratings follow the approved datasheet of your order.
Rated Power35W
Output Voltage Options5V / 12V / 15V / 24V / 36V / 48V DC
Rated Current3A @ 12V · 1.5A @ 24V
Input Voltage Range85–264VAC / 120–370VDC
EfficiencyUp to 88%
CoolingFree-air convection
Dimensions (L×W×H)99 × 82 × 30 mm
ProtectionsShort circuit / Overload / Over voltage
Browse LRS Models Ask an Engineer

Which Harlon Series Fits Your Application?

SeriesTypical PowerMounting / EnclosureCoolingBest For
LRS Ultra-Slim35W – 350WEnclosed metal case, 30 mm heightConvection (fan on 350W)LED signage, CCTV, automation, 3D printing
SE / SP High Power350W – 3000WEnclosed chassis mountBuilt-in fanMachinery, chargers, telecom, lab power
DC-DC ConverterApplication-basedChassis / potted moduleConvectionVehicles, solar storage, battery systems
Waterproof LED DriverModel-basedPotted, sealed outdoor housingConvectionStreet, façade, landscape, signage lighting
MDR / EDR / NDR10W – 480WTS-35 DIN railConvectionControl panels, PLC, building automation

Power ranges reflect typical catalog configurations. Custom output voltages, connectors, cable lengths and labels are available through our OEM/ODM program.

Applications

Where Harlon Power Supplies Work Every Day

Our engineering team matches topology, protections and derating to the real operating environment of your equipment.

Industrial Automation

Stable 24V rails for PLCs, sensors, servo controls and conveyor systems.

Instrumentation

Low-ripple supplies for measuring, testing and analytical instruments.

EV Charging Stations

Auxiliary and control power for chargers, metering and communication modules.

LED Lighting & Signage

Constant-voltage and waterproof drivers for indoor and outdoor lighting.

Energy Monitoring

Reliable supplies for smart meters, data loggers and power monitoring units.

Smart Home

Compact, efficient modules for gateways, security panels and smart devices.

Medical Care Equipment

Power for care and monitoring devices; compliance scope confirmed per model.

Security & CCTV

Multi-channel 12V/24V supplies for cameras, NVRs and access control.

Harlon power supply factory video cover Factory Video TourAssessed video · 2 min 24 s
Harlon factory building and workshop Harlon power supply assembly workshop Harlon company capability overview
About Harlon

A Power Supply Factory Engineers Can Audit — Not Just a Catalog

Zhejiang Harlon Electronic Co., Ltd. has designed and manufactured AC/DC switching power supplies in Wenzhou, Zhejiang since 2007. Our portfolio runs from 10W modules to 3000W high-power units, serving industrial automation, instrumentation, charging stations, LED lighting control, energy monitoring, smart home and medical care equipment.

Our R&D lead brings around 30 years of independent power design experience, and our in-house PCB assembly and wave soldering lines let us control quality from bare board to packaged unit — which is why OEM buyers come back for repeat programs.

  • Custom ManufacturerDedicated lines, OEM & ODM
  • 18 Years ExportGlobal export expertise
  • On-site Material InspectionVerified by third party
  • Finished Product InspectionAging & final testing
  • 31 Cooperated SuppliersStable component sourcing
  • Buyer Label OfferedYour brand, your packaging
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0Years in Industry
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0Average Buyer Rating
Manufacturing Process

From Raw Material to Packaged Power Supply: 9 Controlled Steps

Every Harlon unit follows the same documented flow, so the sample you approve is the product you receive in mass production.

1Raw material inspection for power supply components

Raw Materials

Incoming inspection of ICs, capacitors, magnetics and PCBs.

2SMT surface mount placement

SMT

Automated surface-mount placement and reflow.

3Through-hole component inserting

Inserting

Through-hole components inserted by machine and hand.

4Power supply PCB welding

Welding

Wave soldering and touch-up for robust joints.

5Output voltage adjusting

Adjusting

Output voltage calibration to specification.

6Power supply housing assembly

Assembly

Enclosure, insulation and terminal assembly.

7Burn-in aging test of power supplies

Aging

Loaded burn-in to screen early-life failures.

8Final electrical testing of power supplies

Testing

Final electrical, hi-pot and function tests.

9Export packaging of power supplies

Packaging

Labelled, export-grade cartons ready to ship.

Our Journey

19 Years of Climbing: Harlon's Growth Milestones

Steady, verifiable growth — from a Wenzhou workshop to an SGS-assessed exporter serving five regions.

2007

Founded in Wenzhou

Started manufacturing AC/DC switching power supplies in Zhejiang, China.

2008

First Export Orders

Began serving overseas buyers — the start of 18 years of export experience.

2009

Global B2B Channel

Opened our verified supplier store, now a 17-year trading track record.

Scale-Up

10+ Production Lines

Added SMT, auto insertion, wave soldering, glue potting and auto packaging.

Quality

ISO 9001 System

Quality management built around incoming, in-process and final inspection.

2026

SGS On-site Verified

10W–3000W portfolio, 4.8/5 buyer rating and 99% response rate.

Production Capability

Inside Our Factory: Automated Equipment Behind Every Order

Automation reduces variance. These are the machines that build your power supplies — hover to see each station.

Wave soldering machine
Wave Soldering Machine
Automatic inserting machine
Automatic Inserting Machine
SMT machine
SMT Placement
Automatic double liquid glue machine
Double Liquid Glue Potting
Automatic packaging machine
Automatic Packaging
Power supply production line
Production Line
SMT automatic assembly line equipment
SMT Assembly Line
Labelling machine
Labelling Machine
Automatic assembly line equipment
Automatic Assembly Line
7International trade shows attended
122Online orders in the last 6 months
US$5–10MAnnual output value
51–100Employees on site
North AmericaSouth AmericaCentral AmericaEastern EuropeDomestic China
Quality Control

Certified Quality, Proven in Our Own Test Lab

We invest in the same test equipment used by certification labs, so EMI, surge, insulation and thermal issues are caught before your shipment — not after.

Power supply aging tester
Aging TesterLoaded burn-in
High and low temperature heat chamber
High & Low Temp ChamberThermal stress
Lightning surge generator
Lightning Surge GeneratorSurge immunity
EMI test receiver
EMI Test ReceiverConducted emissions
Shielding test room
Shielding Test RoomEMC environment
High voltage test system
High Voltage Test SystemInsulation / hi-pot
Earth resistance tester
Earth Resistance TesterGrounding safety
Vibration measurement instrument
Vibration InstrumentMechanical robustness
Digital storage oscilloscope
Digital Storage OscilloscopeRipple & noise
DC electronic load
DC Electronic LoadLoad regulation
Comprehensive performance tester
Performance TesterFull parameter check
Automatic testing system
Automatic Testing SystemData-logged results
Optical inspection equipment
Optical InspectionSolder & placement

ISO 9001

Quality management system covering design, production and inspection.

Certified

SGS Assessment

Factory, staff and production capability verified on-site by SGS Group.

Verified

Product Compliance

CE / RoHS and other test documentation provided per model on request.

Per Model

Buyer Verified

4.8 / 5 average rating from international buyers on product and service.

4.8 / 5

Full assessment report available on our verified supplier assessment page.

Buyer FAQ

Questions Procurement Teams Ask Before Ordering

Straight answers to speed up your supplier qualification.

Is Harlon a factory or a trading company?
We are a manufacturer with our own factory in Wenzhou, Zhejiang — about 10,000 m² of floorspace, more than 10 production lines and 51–100 employees. Our company premises and production capability were assessed on-site by SGS.
What power range do your switching power supplies cover?
From 10W modules to 3000W high-power units: LRS ultra-slim (35–350W), SE/SP high power, MDR/EDR/NDR DIN rail (10–480W), DC-DC converters and waterproof LED drivers.
Do you offer OEM and ODM customization?
Yes. We provide full customization, sample-based customization, design-based customization and buyer-label service, backed by 18 years of OEM experience. Typical custom items include output voltage/current, connectors, cable length, housing, label and packaging.
How do you control quality?
Our ISO 9001 system combines on-site incoming material inspection, controlled SMT and soldering, voltage adjustment, loaded aging, and final testing with hi-pot, EMI, surge, vibration and temperature chamber equipment, followed by finished product inspection.
Which trade terms and payment methods do you accept?
Delivery terms: FOB, CFR, CIF, EXW, DDU and express delivery. Payment: T/T, L/C, MoneyGram, credit card, PayPal, Western Union, cash and escrow. Currencies: USD, EUR, HKD and CNY.
What should I send for a fast technical proposal?
Share your input voltage range, output voltage and current, total wattage, mounting style, operating temperature, required certifications, target market and estimated annual quantity. Our engineers will recommend a standard model or a custom design.
Start Your Project

Tell Us Your Power Requirements — Get an Engineer's Recommendation

Whether you need a catalog model in volume or a fully custom power supply, include these details for the fastest reply:

  • Input voltage, output voltage / current and total wattage
  • Mounting type: enclosed, DIN rail, waterproof or open frame
  • Application, operating environment and target certifications
  • Estimated quantity, labeling and packaging needs
Email our sales engineers[email protected]
Contact Us Read Buyer Reviews

Fast Response

99% inquiry response rate — real engineers, not auto-replies.

Engineering Review

Every custom request is checked for derating, thermal and safety margins.

Sample-Based Customization

Approve a sample first, then scale to mass production with the same process.

Verified Custom Manufacturer17 years as a verified supplier · SGS on-site assessed