Output Current (mA)
When using a Constant Current LED driver, observe the current requirements of your chosen LED(s). The CC driver should then reflect that value output. LEDs data sheets state what they require, with the value given in amps (A) or milliamps (mA). 1 A = 1000 mA
There are also variable and selectable output current drivers. They give either a range, for example 0 mA to 500 mA, or stepped values like 350 mA, 500 mA, 700 mA. Your LED must fall within the chosen value(s).
LEDs can be run at a lower current to help extend its life expectancy. Using a higher current could wear the LED out a lot quicker.
Output Power (W)
This value is given in watts (W). Use an LED driver with at least the same value as your LED(s).
The driver must have a higher output power than your LEDs require for extra safety. If the output is equivalent to the LED power requirements, it is running at full power. Running at full power may cause the driver to have a shorter life span. Similarly the power requirement of the LEDs is given as an average. With tolerance added on top for multiple LEDs, you need a higher output power from the driver to cover this.
Output Voltage (V)
This value is given in volts (V). For constant voltage drivers, it requires the same output as your LED’s voltage requirements. For multiple LEDs, each LED voltage requirement is added together for a total value.
If you are using constant current, the output voltage must exceed the LED requirements.