An LED is a low voltage light source; it requires a constant DC voltage like that of an LED driver to ensure it functions as efficiently as possible. If an LED was powered by an inconsistent DC voltage power supply it would become too hot and unstable resulting in failure and bad performance.
Convectional power supplies generally provide a constant voltage to the load, whilst the current varies throughout a range i.e 0~5A, dependant on the load condition.
LED’s are a low voltage light source; they require a constant DC voltage/constant current like that of an LED driver to ensure it functions as efficiently as possible.
LED drivers therefore convert the incoming AC power to the required DC voltage and protect the LED from line-voltage fluctuations.
The efficiency of an LED driver compared to a convectional power supply on LEDs differs dramatically, to measure the efficiency of a convectional power supply the output power is divided by the input power. Whereas to figure out the efficiency of an LED driver you must take into consideration the amount of input power required to generate the LED brightness required, this is done by dividing the power in the LEDs by the input power. LEDs are the forefront of energy saving methods, it is therefore vital that the LED driver functions as efficient as possible.
LED lighting power supplies have a vast range of LED drivers suitable for numerous applications to allow low maintenance fit and forget applications.