Constant voltage LED drivers usually have fixed voltage ratings of 5v, 12v, and 24. Or other voltage ratings with a certain current range or maximum current range. The constant current LED driver will have a similar rating, but as a fixed one. A or mA value and voltage range or maximum voltage. The led device should give an indication of its power requirements, as well as the nominal voltage and current range. If it is just an 20w led driver, then current control is necessary to prevent the LED from entering thermal runaway.

Light-emitting diodes are diodes that consume energy and convert it into light. However, this process is not completely effective, and there are some internal losses that generate heat. As an LED becomes hotter, it becomes less efficient and consumes more current.

Which is better?

For industrial lighting, dimmable constant current led driver is common. The dimmable led driver 0 10v is designed to provide power for the pre-designed LED system,Typically, constant voltage LED drivers are more flexible. This is because there are more LEDs until the maximum current capability of the constant voltage LED is reached. After reaching the driver, any further LEDs will reduce the available power to each LED, only reducing the brightness.