Switching power supply, also called switch converter, is a kind of high frequency electric energy conversion device.It’s function is let a voltage through different forms of architecture into the voltage or current client demands.For example, if your home has four cameras, each camera's power is 50 w, need 12 v supply voltage, the voltage is 220 v in the home, so a power of 200 w, 12 v voltage of switching power supply can solve this problem.

Why did you choose switching power supply instead of transformer?

AC→DC

Output over- voltage protection

Over-current protection

Short circuit protection

Surge protected outputs 

Input 100~240VAC 50/60 Hz

Output LED indicator

1.Q: Are you a power supply  factory or power supply trading company?

A: We are power supply manufacturer.

2.Q: Where is your power supply factory located? How can I visit there?

A: Our power supply factory is located in Shenzhen City, China. You can fly to Shenzhen Bao’an airport directly,  and we will pick you up. Welcome to visit our power supply factory.

3.Q: How can I get some power supply samples?

A: We are honored to offer you power supply  samples, pls contact our staff and leave detailed contact                   information, we promise to keep your information confidential.

4.Q: How does your power supply factory do regarding quality control?

A: Quality is the priority. We always attach great importance to quality controlling from the start to the end. All       our power supply products have gained CE, FCC, ROHS certification.

5.Q:What can you do?

A:1.All of our power supply products have proceeded aging test before shipment and we guarantee safety           while using our power supply products.

   2.Support imprint your logo on power supply  products and let your logo shine anywhere. 

   3.OEM/ODM orders   are warmly welcomed!

6.Q:Warranty and return:

A:1.All power supply  products and accessories have been tested by 3 times before ship out.

   2.We own the best after-sale service team, if any problem happens, our team will do our best to solve it for you.

Shenzhen Yongjiasheng Technology Co.,LTD. is a direct supplier of CCTV Camera (CCTV,network IP,and AHD),video surveillance systems,and CCTV equipment (Closed Circuit Television ) for home, business and government.In addition to CCTV cameras and systems,we also manufacture network IP cameras,AHD cameras,and hundreds of video surveillance accessories.Most of our CCTV Camera include DVR viewer software for Windows and Mac PCs,as well as mobile surveillance viewer apps for iphone, ipad,and Android devices.We offer many complete systems that are pre-configured and easy to install.

Our CCTV Camera provides the best customer service & technical support in the industry.We also strive to provide the most competitive pricing possible on CCTV Camera ,security cameras,surveillance equipment,and DVR cards.

If you are interested in our product,pls feel free to contact us, we are glad to establish bussiness relations with you.

Website:   /  (Chinese Website)

                http://szyjs.en.china.cn/  (English Website)

Email  : sales8 @szyjskj.com

Skype : sales8 @szyjskj.com

Trade Manager: cn1512083282

Mobile : 0086- 137 6080 2995

Tel : 0086-0755- 88606011

Whatsapp: +8613760802995

Sales Representative: Jack Wong