Knowledge

LED Driver Power Factor and Load

Hello everyone, Today we will talk about the relation between power factor and load. As we know that power factor is a very critical parameter when we are designing the lights, and a key value which evaluates the pollution caused by the electrical device to the electricity grid.Normally it...

Why use high efficiency LED drivers

There are a number of reasons why it is advisable to use LED drivers with high efficiencies. The first, of course, is the cost benefits of high efficiency drivers. The less energy that is required to provide the desired luminous output, the less it costs to power the fixture. Since...

What Type of LED Driver or Power Supply Do I Need?

Conventional AC-DC power supplies and DC-DC converters provide an output that is regulated to provide a "constant-voltage." However, LEDs work most efficiently and safest with a "constant-current" drive. As a result, many new devices have been developed to provide this type of LED drive. LED power sources that provide a...

What does IP means in LED drivers

The waterproof level of LED drivers is specified by two numbers known as Ingress Protection (IP) ratings, which are a measure of the environmental protection that the driver provides. The first number of the IP rating specifies the driver’s protection against solid materials, whereas the second figure specifies protection from...

lightning protection levels of LED drivers

The IEC 61000-4-5 standard and test-method establishes a common reference for evaluating the immunity of electrical and electronic equipment when subjected to surges such as lightning. Surge test standards for lightning protection as below, IEC61000-4-5 ranks: Level  Open-circuit test voltage 1   0.5kV 2   1.0kV 3   2.0kV 4   4.0kV X   Special NOTE X can be any level, above, below or in between the...

8 Steps to Choose the Right LED Driver

We will talk about the selection of LED drivers. It seems that it is not difficult to select a driver, but it is indeed difficult to find a proper or suitable driver for an optimized light fixture product. Actually there are multi-steps during the selection of drivers and please check...

Ripple Current and Flickering of LED

Hello, today we are going to talk about the flicker, or strobe flicker. Difference of flicker and strobe flicker First let's try to make the difference of flicker and strobe flicker clear. flicker normally indicates the instability of the light system, which can be obviously noticed by human eyes. And the...

12v constant voltage dimmable led driver

12v constant voltage dimmable led driver, Upowertek has the most advanced constant voltage dimmable LED driver, it is designed for outdoor application, metal casing and IP67 waterproof, since it's constant voltage output, the dimming method is by using PWM output, which can make sure the color of the LED...