LED driver has two types: constant voltage led driver and constant current led driver, depending on whether they regulate output to provide a constant voltage or current to the LEDs. Constant voltage led driver can be called voltage converter or ac to dc transformer, due to it covert the AC high voltage to DC low voltage, which normally has 5v power supply,12v power supply, 24v power supply, 36v power supply and 48v power supply (variable dc power supply).LED driver is used for LED light, before we purchase any LED driver, you need know below main specifications:
- Electrical parameters: Power, voltage and current, first, you need know the working voltage or current of LED light, then, you can check the output voltage and current of your led driver, do they match?
- Dimming function, dimming type, if your led light is dimmable, you need check which dimming type is: 0-10v, dali, PWM signal or triac. Make sure your led driver has the same dimming type.
- IP rate, waterproof or non-waterproof. Do you use the led driver in outdoor or indoor place? Is the place wet or dry? The IP rate can be IP20 (non-waterproof) to IP68 ( can be installed in water)
Ac to dc converter: LED driver is a type of ac dc power, LEDs require a device that can transform incoming AC power to the proper DC voltage, and regulate the current flowing through the LED during operation. The LED driver & power supply converts 230V (or other voltage 110V) AC power to low-voltage DC power required by the LEDs, and protects the LEDs from line-voltage fluctuations.
There has some types of power supplies can be used for both traditional lights and LED lights, such as the switching power supply ( also known as switching-mode power supply, switch mode power supply, SMPS, or switcher) is an electronics power supply that incorporates a switching regulator to convert electrical power efficiently, which normally used for led strip lights today.
LED driver is the most important part for any LED system. You probably faced the situation that led driver power supply was broken but the LED was still good. As the rapid growing of led light during these years, there has many led driver manufacturers appear in the market, the quality and price is vary, how to find the best power supply for your LED lights among the different led drivers? Do you know the difference of constant current and constant voltage led driver or the information of wattage, power factor(PF), power factor correction (PFC), power efficiency, IP rate, housing shell,RoHS materials,electronic components,full load burn-in test,approval protection(over current, over load,short circuit and over temperature protection) ?
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