Shenzhen Power Adapter Manufacturer | 5W-120W Custom Charger Factory

About us

Our professional team will provide you with the best service

Shenzhen Keyulong Technology Co., Ltd.

Shenzhen Keyulong Technology Co., Ltd. Mid-to-High End Power Adapter · Customized Solution Provider Make Every Watt More Valuable Focus on 5W-120W Power Range High Reliability · Full Compliance · Fast Customization Keyulong Technology – Shenzhen Power Adapter Source Factory Shenzhen Keyulong Technology Co., Ltd. (Keyulong Technology) is a power adapter manufacturer and charger customization manufacturer located in Gushu, Bao'an, Shenzhen, Guangdong , with an ...

Application

Koyulong Technology Power Adapter | Charger | Fast Charging Head is widely used in various products such as digital communication, household appliances, IT products, light strips, smart tools, etc

LED Lighting

ICT Equipment

Security & Surveillance

Customization Process

We provide a simple and efficient customization process

Customize

Through online consultation or telephone consultation

Quotation

Preliminary quotation based on demand

Details

Both parties reached a consensus on their opinions

Proofing

Produce according to customer requirements

Payment

Sign the order contract

Completed

Product delivery, completion of transaction after customer satisfaction

Process Flow

Every process is taken seriously to ensure that the product fully meets expectations

Warehousing

QA Sampling

Packaging

Visual Inspection

Testing Before Packaging

ATE Testing of Finished Before Packaging

Aging

Finished ATE Testing

Finished Product Testing

Ultrasound

Assembly

Laser Engraving

PCBA Testing

PCBA Appearance

Back Welding

Tin Dipping

AI Plugin

Incoming Inspection

Honors & Qualifications

Through ISO9001 quality management system certification, each product meets international standards

Latest News

Show you our latest news and product information

Keyulong Technology QC3.0 18W Fast Charger 2026-07-02 15:49:02 QC3.0 Fast Charging Protocol | Intelligent Voltage Regulation | 18W High Power | Multi-national Comp...

5V 2A Charger Specifications | Multi-Certified | Direct Factory 2026-06-17 11:15:23 5V2A Certified Charger | USB Charger Head Product & Original Factory Introduction | Keyulong Te...

5V 1A Charger | 5W USB Power Adapter | CCC CE UL UKCA Certified 2026-06-11 14:22:14 5V1A Charger Certified | USB Charger Product and Source Factory Introduction | Keyulong Technology ...

How to Verify 3C Certification for Power Adapters? 3 Steps to Check 2026-06-05 12:06:37 During the procurement of power adapters and chargers, CCC certification is an important basis for...

Complete Guide to Choosing Power Adapters | 5 Key Parameters 2026-05-30 11:03:33 Power adapters may be small, but they are the "energy heart" of modern electronic device...

Non-Standard vs Certified Power Adapters | Why Certification Matters 2026-05-29 20:50:10 In B-end procurement, the choice of power adapter directly affects equipment stability, compliance fo...

Shenzhen Power Adapter Manufacturer | 5W-120W Custom Charger Factory | Keyulong Official Website: www.szkeyulong.com/en/

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