Industry Information

Update May 22, 2019

What is Class 2 and ClassⅡ? What is the difference between ClassⅠand ClassⅡ?

Class 2: When an electronic circuit is powered by class 2 power supply, its output current and power are under the limitation shown in UL1310 Table 30.1, and the risk of fire can be reduced...

Update May 14, 2019

What is LPS? If the power supplies can meet LPS, what is the benefit for the end product?

LPS: When an electronic circuit is powered by a limit power source(LPS), its output current and power are under the limitation shown in IEC60950-1 Table 2B, and the risk of fire can be reduced...

Update May 14, 2019

What is SELV LED Driver?

In general, the safety extra low voltage is 25Vac. SELV circuit (Safety Extra Low Voltage Circuit) has a properly designed and protected secondary circuit that under normal operating conditions, the...

Update May 14, 2019

What difference between charger,car charger and quick charger?

How to distinguish the battery charger, car charger, adapter charger and fast charger? A lot of people in the purchase of mobile phone, usually see many optional charging parts, how should we...

Update May 06, 2019

Is it normal for a laptop power adapter to be hot?

When a laptop power adaptor is plugged in to a laptop and the laptop is turned on, you will notice the adapter may be warm to the touch. The more the laptop gets used, the warmer the adapter may...

Update May 06, 2019

What is USB Type-C Charger?

Google and Apple have both launched new mobile computers recently, and although the machines are quite different, they have something in common: both include USB Type-C ports. So what exactly is USB...

Update May 06, 2019

Difference between isolated and non-isolated LED Light

Why led light with isolated power is more expensive than the led light with non-isolated power? 1) More devices on the power supply circuit board, more cost. 2) Better stability, better quality. 3)...

Update May 05, 2019

How to choose switching power supply / linear power supply / RC solution?

As we all know, there are two important points in determining the quality of LED driver power supply: One: look for the brand of capacitors; Ruby (Rubycom Japan) is particularly well-known, Hengying...