China Lighting LED downlight 750lm

Watts nawa don hasken wuta na 750lm?

LED da muke amfani da shi shine 120-140lm/w, tsammanin LED 120lm/w.

Amfanin haske 80%, 120lm/wx80%=96lm/w

750lm / 96lm/w = 7.8w

Don haka idan kuna buƙatar LED downlight 750lm, kawai zaɓi downlight 8W.