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LED Lighting，High efficiency long life and high reliability

HAOWANGDA

High efficiency long life and high reliability，TV boxes, routers, controllers, home appliances

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开启探索之旅

Product Category

Power Adapter&Led Switching Power Supply Global Provider

Hot Products

Q Series led power supply

IP67 Waterproof led power supply

I Series led power supply

C Series led power supply

12V 5A desktop adapter

12V 4A power adapter

12V 3A power adapter

12V 2A power adapter

25 Years Of Experiencesy

Shantou Haowangda Electric Appliance CO.,LTD

Shantou Haowangda Electric Appliance CO.,LTD is a leading one-stop customized manufacturer specializing in power adapters, chargers, and power supplies.

We have crafted exceptional products for global brand,and our mission is to serve as acritical voice in the power supplies -offer the most competitive prices and qualities to achieve long-term win-win cooperations.

50 +

Sales Region

3000 ㎡

Company covers an area

100 +

Sales Region

Learn more

30 +

Over 30 years of industry expertise

PCB board design

Sample making

Technical parameter performance testing

Customized process display

Professional OEM/ODM

Minimum MOQ：500 pieces

Introduction to Customized Services

· Our goal is to achieve high-quality production and delivery through continuous innovation.
· Utilizing automated production lines and a rigorous quality control system, we are capable of meeting customized demands and tight deadlines.
· The engineering team supports rapid prototyping, with test samples delivered as quickly as within 7 days, and the mass production cycle is stable at 7-14 days.
· We also provide compliance reports such as CE, FCC, and RoHS, to assist customers in successfully passing market access certifications.

Exhibition Style

Company Exhibition

We have many years of experience in the field of Mechanical parts

120 +

Global Customers

50 +

Exporting Country

See Moe +

Customer Reviews

Tracy:

2026.01.06

★★★★★

Your products allow me to enjoy life more fully, bringing refreshing pleasure to my life

John:

2026.01.06

★★★★★

Your products allow me to enjoy life more fully, bringing refreshing pleasure to my life

Linda:

2026.01.06

★★★★★

Your products allow me to enjoy life more fully, bringing refreshing pleasure to my life

Mayo:

2026.01.06

★★★★★

Mayo: Tus productos me permiten disfrutar de la vida más plenamente, aportando un placer refrescante a mi vida

Why is the quality of our products Superior?

Strictly follow international production standards

Our manufacturing processes are meticulously aligned with global standards, products are designed and tested to meet key international safety and EMC standards, including CE, TÜV, CCC, and Rohs.

Cutting-edge Equipments

At Haownagda, we invest in state-of-the-art machinery — from automated SMT assembly and precision molding systems to fully automated testing platforms — ensuring every power supply unit meets the highest standards of reliability, efficiency, and consistency.Every products undergo end-to-end testing–automated burn-in, electrical safety, and performance testing ensure 100% compliance.

Strict Material Storage

At Haowangda,every electronic component is stored under maintain optimal temperature and humidity.This professional storage protocol prevents moisture absorption, oxidation, and electrostatic damage, ensuring that each component — from capacitors to IC — performs at its peak from the moment it’s installed.

Use Excellent Components

Refuse counterfeut,remarked,or off-spec components.We establish long-term partnerships with top-tier compoents manufacturers to ensure supply chain integrity and consistent quality.

Haowangda

FAQs?

With its strong R & D capability and well-trained and experienced production team, the company has been well received by customers.

Learn more

Are you a factory?

Shantou Haowangda Electric Appliance Co., Ltd. is a professional manufacturer engaged in the research, development, production, sale and service of Power adapter,Constant current power supply,Regulated power supply,charger,Dc power adapter. It is suitable for set-top boxes and networks. LEDs, routers and other electronic products.

What is the MOQ?

The MOQ is 500 pcs per style.

How long is the sampling time?

Around 3-5 days.

Sample terms

We provide samples for evaluation，and sample prototyping will finish in 7 days.

Warranty policy

We offer a standard 2 years warranty from the date of shipment, covering manufacturing defects. Detailed warranty terms are provided with each order.

Blog Event

The power adapter of the mobile phone needs to be recognized for the voltage volt

1. Types and specifications of mobile phone chargers Mobile phone chargers can be divided into two categories based on their output current and voltage: direct charging and seat charging. Direct charging, also known as fast charging, can be directly plugged into a power outlet to charge a mobile phone; On the other hand, a charging dock requires placing the phone on the charging dock for charging. In addition, according to the different output currents, mobile phone chargers are divided into different specifications such as 1A and 2A. The requirements for chargers vary among different brands and models of mobile phones. 2. Compatibility of different brands of mobile phone chargers Many users often mix different brands or models of phone chargers for convenience. However, due to differences in chip and circuit design used by different brands of mobile phone chargers, their output current, voltage and other parameters are also different. Therefore, mixing them may cause damage to the chargers and even lead to safety accidents. Therefore, it is not recommended to mix different brands of mobile phone chargers.

The driving method of LED lighting power supply

LEDs cannot directly use conventional mains voltage. Due to the characteristics of LED light sources, in order to meet the special voltage and current requirements of LED, it is necessary to use specially designed voltage conversion equipment to ensure the normal operation of LED. So LED lighting fixtures have a different power drive method from traditional lighting fixtures. The driving methods of LED lighting power supply include two types: Firstly, a constant current driving power supply. 1. The output current of a constant current drive circuit is constant, while the output DC voltage varies within a certain range with the size of the load resistance. When the load resistance is small, the output voltage is low, and the larger the load resistance, the higher the output voltage; 2. A constant current circuit is not afraid of load short circuits, but it is strictly prohibited to completely open the load; 3. The constant current drive circuit is ideal for driving LEDs, but relatively expensive; 4. Attention should be paid to the maximum withstand current and voltage values used, which limit the number of LEDs used. Secondly, a regulated driving power supply. 1. After the various parameters in the voltage stabilizing circuit are determined, the output voltage is fixed, while the output current changes with the increase or decrease of the load; 2. The voltage stabilizing circuit is not afraid of open circuit of the load, but it is strictly prohibited to have a complete short circuit of the load; 3. Drive the LED with a voltage stabilizing driving circuit, and add appropriate resistors to each string in order to make the brightness of each LED display average;

The Development Status of LED Driver Power Supply

While LED is shining brightly, LED driver power is of utmost importance in the development of the LED industry chain. The lifespan and reliability of LED driver power directly affect the longevity of LED light sources. So, as the LED industry chain continues to integrate and develop, the maturity of LED driver power technology plays a decisive factor. Due to the rapid development of the LED industry, it has gradually shifted from government lighting to civilian lighting. Thanks to a series of policies recently introduced by the country to encourage the development of the LED industry

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关注新闻动态

2024-03-28

The power adapter of the mobile phone needs to be recognized for the voltage volt

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2024-03-28

The driving method of LED lighting power supply

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2024-03-28

The Development Status of LED Driver Power Supply

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2024-03-28

How many classifications are there for LED driver power supplies

By drive mode (1) Constant current type a. The output current of a constant current drive circuit is constant, while the output DC voltage varies within a certain range with the size of the load resistance. When the load resistance is small, the output voltage is low, and the larger the load resistance, the higher the output voltage;

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