Industry Information

Update December 15, 2022

China has built more than 2.2 million 5G base stations and 550 million 5G terminal connections

At 10 am on July 19, 2022 (Tuesday), Tian Yulong, chief engineer and spokesperson of the Ministry of Industry and Information Technology, said at a press conference that he will vigorously promote...

Update December 07, 2022

What is the difference between CQC certification and CCC certification?

CCC certification is a national compulsory product certification, CQC certification is a national voluntary product certification, also known as logo certification, CQC is the abbreviation of China...

Update November 29, 2022

How to use switching power supply

With the popularization of electrical equipment, switching power supply is widely used in our daily life, and it is an indispensable power supply method. Below, I will share with you how to use the...

Update November 24, 2022

In ZH’s product Catalog and PSU label, we see AC and DC at input, what is it all about?

Due to different circuit designs, there has AC-DC power supply and DC-DC converter when you select. Finding a custom external power supply manufacturer with the required dc output voltage, or using a...

Update November 17, 2022

Whar is PWM Dimmable LED Driver?

Pulse width modulation(PWM) dimming for an LED driver involves applying the pulse width modulation mechanism in making a LED driver dimmable. In this post, we can touch some basics about PWM dimming...

Update November 10, 2022

PFC Power Supply what does it mean

PFC (Power factor correction) is a feature included in power supply boxes that reduces the amount of reactive power generated, it mean to improve power factor, and therefore power quality. It reduces...

Update November 03, 2022

What is Type HL standard LED Drivers and does it to benefit the Lighting application？

You may be confused about some of the new safety symbols when you seen the LED driver label. In the latest UL test standard about our dimmable driver and non dimmable LED driver, it has Class 2,...

Update October 26, 2022

What is 0-10V and 1-10V Dimming?

0/1-10V dimming principle The dimmable driver is designed with a control chip, when a 0-10V or 1-10V dimmer is connected, the output current of the led driver can be changed through the 0/1-10V...

Update October 21, 2022

Basic Knowledge of Power Adapter Repair Welding

1. Welding Appearance: There is a clear black boundary between the solder and the component leads or copper, and the solder is concave to the boundary. It does not work properly because the component...

Update October 12, 2022

How do External AC DC Adapter get CCC?

3C Certification, also known as China Compulsory Certification, is a product conformity assessment system implemented by the Chinese government in accordance with laws and regulations to protect...