China lighting led downlight 750lm

How many watts for led downlight 750lm?

The LED we use is 120-140lm/w, suppose LED 120lm/w.

Light consumption 80%, 120lm/wx80%=96lm/w

750lm / 96lm/w = 7.8w

So if you need led downlight 750lm, just choose the downlight 8W.