It is an electronic device which regulates the power required for an LED or array of LEDs.
Its main purpose is to rectify higher voltage alternating current (AC) to low voltage direct current (DC). (AC / DC adapter) required to operate the source of light (LED Chip).
Yes, all LED lights do require a driver to operate.
|Constant Voltage||Constant Current|
|Configuration||Convert the incoming mains voltage of AC to constant lower DC voltage and regulate the current.||Convert the incoming mains voltage of AC to lower DC voltage with constant current output|
|Output||Provides a fixed output voltage and LEDs are connected parallel with the driver.||Provides a fixed output current and LEDs connected in series.|
|Application||It is ideal for powering LED strip and external lighting to deal with low voltages for safety.||CC drivers are often the most popular choice such as, downlights, spot light, panel light for retail and hospitality applications.|
There are many considerations for choosing your LED driver, so we will mention the most important factors:
You need to choose a driver that provides at least the power requirement of your LEDs. It is better to have a higher output power than your LEDs require for extra safety.
For example, if we have 40 m length of Serpent strips (9.6W/m)
- Output Voltage (V):
a) Constant Voltage: The output voltage of the driver needs to match the voltage required by the LEDs. For example, we have Maknoon Neon flex with Voltage DC 24V. We need driver with Output Voltage 24 V.
b) Constant Current: The output voltage must exceed the LED requirements.
- Output Current (A): LEDs can be run at a lower current to help extend its life expectancy. Using a higher current could damage the LED quicker.
a) Constant Voltage: The current limiters for driver must be within LED Current to operate.
b) Constant Current: If your LED needs 350 mA your driver needs to have that output too.
Describes how efficiently an LED driver uses electricity. The range for power factor is a decimal between [0,1]. The closer to 1 the power factor is, the more efficient the driver is.
To fit different applications: Indoor applications (IP20) or Outdoor (IP65 and higher).
If you want to be able to dim your LEDs be sure to buy a driver with dimming capabilities. If you don’t need dimming, a normal (ON / OFF) driver is enough for you. If you need dimming:
a) Analog: Phase cut Dimming, Leading & Trailing Edge, 1-10 V & 0-10V
b) Digital: DALI Driver, DMX.