Constant Current Drivers
Constant current power supplies (also known as a driver) give out a fixed current within a particular voltage range. These are designed for discrete luminaires where the load is always fixed such as LED panels, LED downlights and some types of LED light engine.
There are various dimming options for constant current power supplies:
Fixed output with no control over the brightness of the light.
The power supply can be connected to a Leading Edge mains dimmer to control the brightness of the light.
The power supply can be controlled using a 0-10V analogue input to control the brightness of the light.
The power supply can be controlled using a DALI digital input to give complete centralised control over the light.
Note that constant current drivers must be matched to the current and voltage range of the luminaire to avoid the risk of permanent damage.
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