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Why do LEDs flicker?
10 Jan, 2019
All mains-powered light sources flicker – whether halogen, fluorescent incandescent, or LEDs. In the UK, mains electricity is an alternating current (AC) power supply, delivered at a frequency of 50 hertz. Which means the electric current that powers your lights – any lights – switches backwards and forwards 50 times each second. We didn’t used to notice it with our old incandescent...
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What do you mean by constant voltage?
23 Jan, 2019
A Constant Voltage LED Driver 12V & 24v can be used to power LED lights that have constant current drivers already within the system or resistors . 'Constant voltage' refers to the ability to fluctuate output current to maintain a set voltage. So you need some type of constant voltage power supply that can convert your AC household voltage down to a safe DC voltage. There are many things that ...
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Advantage of triac dimmable led drivers
19 Jun, 2020
Using a triac dimmer connect to the input of “N” of the triac dimmable led driver for dim the LED lamp. During the conduction process of the triac changing the voltage division ratio of the internal adjustable resistor and changing its conduction angle, the effective value of the output voltage can be changed to achieve dimming function. In addition to triac dimming mode, there are leading edge an...
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When Do I Need a “Constant-voltage” LED Driver?
25 Feb, 2019
Most commercially available LED “light modules” are constructed by connecting a number of LEDs in series orinparallel to form cluster or string configurations. In cases where these lights modules include a constant-current driver as part of the assembly, an external “constant-voltage” driver or power supply is required. Low cost LED circuits control the current flowing through the LED with a simpl...
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What is constant current led driver?
23 May, 2019
Constant current led driver is very common around us. Of course, there are kinds of constant current led driver with different functions in different applications, So what is a constant current led driver / power supply? The constant current power supply is a voltage converter that converts the professional voltage and current generated by the LED power supply through the power supply, and th...
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What is the difference between a driver and a power supply?
15 May, 2019
LED power supply sources that provide a "constant-current LED power supply" output have typically been referred to as LED drivers. In the past, AC-DC power supplies that provided a regulated “constant-voltage” to LEDs were referred to as LED power supplies.Today, the terms "LED driver" and "LED power supply" are used interchangeably. Also, it depends on the type of LED....
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Do you need a LED transformer for LED bulbs?
30 May, 2019
All LED bulbs require a 'driver' (a special type of transformer) to work properly. Mains voltage LEDs (such as GU10 and B22 bulbs) have the driver built in to the bulb. ... If you are replacing existing incandescent 12V bulbs you will need to replace the transformer with a special LED driver. Due to increasing energy regulations, most people are familiar by now with the long life spans and energy ...
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Are your led driver flicker free?
06 Jun, 2019
Flicker can be defined as the perception of visual unsteadiness induced by a light source which fluctuates with time for a static observer in a static environment. LED Flicker is caused by voltage ripple at the output of the AC power supply. Furthermore, a stroboscopic effect is the change in motion perception induced by a light stimulus whose luminance or spectral distribution fluctuates with tim...
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What is a LED driver for LED lighting?
17 Jun, 2019
An LED driver is an electrical device which regulates the power to an LED or a string (or strings) of LEDs. An LED driver responds to the changing needs of the LED, or LED circuit, by providing a constant quantity of power to the LED as its electrical properties change with temperature. An LED driver is a self-contained power supply which has outputs that are matched to the electrical characterist...
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How do I choose an LED driver?
25 Aug, 2020
Which factors we should take into consideration when choosing an LED Drivers? And how do I choose an LED Driver? Here may have some factors we should know before choosing an led driver. Fisrt of all, constant Current type or Constant Voltage type for your lighting applications? led constant current driver power keep a constant electric current which can be used for individual or several&...
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SMARTS New product listing 277vac triac dimming led power supply
09 Dec, 2020
Smarts are develop more and more dimmable & non dimmable type led driver. Here release new products: highly compatible constant 277vac triac dimming power supply. Let’s take a look at the other features of this new dimming power supply. 1. Leading edge and trailing edge dimming 2. The new constant voltage triac dimming power supply 3.0 ve...
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What is a 12V dimmable driver?
09 Mar, 2021
Regularly 12v constant voltage led driver is not designed for dimmer switches, and perform unpredictably when dimmed. At best, you might have some measure of dimming control with inconsistent dimming or flickering, at worst, your lights might not work at all. The solution is a power supply designed for use with a dimmer switch : a dimmable driver. 12V dimmable drivers offer superior dimming a...
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