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What is a 0~10V Driver

The 0-10v refers to the way that the dimming works, not the output of the driver. the dimming works like this. at 0 the power is off, and then for every increment from 0-10 the power steps up 10%.
 
So if the driver is receiving a 10v signal, the power (and therefore the brightness is 100%, if the signal is 5v the power and brightness is 50%.
 
0-10v dimming is very efficient with LED lighting becuase it is smooth, but it is not referring to the voltage of the products that are being used.

See the figure below:

0~10V driver