Not knowing all the specs involved in the question, I know for 120 volt incandescent lighting there are dimmers that slide all the way down to off. You can actually feel the detent as the lever enters the off position. To turn it on you just slide it up through the detent and it starts brightening up. I would imagine by now, that there are led labeled dimmers that do the same. If I’m not understanding the question correctly, I apologize.