All it is known that the LED lights work by constant current, but why is there drivers with constant voltage and constant current drivers? We are going to see the differences:
Drivers Led: current constant vs voltage constant
Them drivers current constant supplied electricity by varying the voltage through a circuit electronic, allowing to them devices maintain a current electric constant along all the circuit. This ensures that regardless of the variation in voltage, the power supplied to the LED does not change. By the contrary those drivers of voltage constant have a voltage fixed from 12 VDC or 24 VDC in the circuit.
And now how decided when installing a driver of current constant or one of voltage constant in our facilities?
Drivers Led of current constant
Constant current LED drivers provide a stranglehold on the luminaries and offer installers a total control over the power of lighting luminaires avoiding variations in luminosity in lighting.
Drivers Led of voltage constant
The majority of them devices LEDs is built through the connection of a series of LEDs in series or in parallel calls cluster. To be mounted the LEDs in parallel in these lights and to avoid problems when it comes to matching the current in each string of LEDs, these facilities are fed with constant voltage drivers.
The drivers of voltage or voltage constant are them more used in luminaires in which is unknown (before its installation) the number of luminaires led that there will be in the circuit. The drivers of voltage constant are very used in designs with multiple modules LED connected between themselves or facilities especially complex. Something to keep in mind is that the use of a constant voltage driver is always less efficient in relationship consumed lumen/Watt, but allows the user to have full flexibility, ensuring a constant flow of current.
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