LED Drivers, sometimes referred to as LED supply or LED transformers, are power units that are designed to provide power to LED strips and small led lights. They step the input volatge of 240v down to 12v or 24v power which is required to power the leds. They are used for powering domestic or commercial led lighting installations. LED drivers are designed for powering LEDs with a lower output wattage, usualy 12v or 24v (12 volts or 24 volts).
The LED driver is a self-contained power supply that regulates the AC current power to the low DC voltage LED. They ensure that a constant flow of power is maintained even as the LED’s electrical properties change with increased temperature. The driver will respond to temperature changes in the LED, ensuring that it does not overheat, which can cause flickering or poor performance. A good quality driver will have thermal over-protection meaning it will turn itself off if it becomes too hot in order to protect itself.
Constant Current vs. Constant Voltage
Constant current LED drivers maintain a constant current throughout the electronic circuit but vary in voltage. They are ideal for powering high-power LEDs as they maintain the same current.
Constant voltage LED drivers maintain a constant voltage. They are ideal for LEDs in a long line, for example LED strips. Constant voltage drivers work best with LED products which already have current control, such as a resistor.
Dimmable LED drivers are also available for dimming control. These can be used to dim LED lighting to the desired level, making them very useful in commercial mood lighting. Dimming operations include standard wall dimmers, 0-10V & 1-10v, DMX and DALI protocols.
LED drivers includes models with various input/output levels and configurations to suit your LED lighting setup. They are also available in a variety of ingress protection (IP Rating) levels, meaning that your lighting set up can be installed virtually anywhere including outdoors, sauna and steam rooms and swimming pool and wet environments.
The IP rating of an LED driver represents its water-resistance. Lower numbers such as IP20 are best suited for indoor use. IP44 is suitable for use in areas that may come into contact with water splashes, such as LED strip lighting in a kitchen. IP65 and higher up to IP68 LED drivers are rugged and are ideal for use outdoors where it could become submerged with water.
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