Tuam Tshoj teeb pom kev zoo Hoobkas coj downlight 900 lumen

Muaj pes tsawg watts rau 900 lumen coj downlight?

Nws yuav yog 9-10w. Yog hais tias lub LED lumen tso zis yog 120lm / w, CRI 80

80% teeb pom kev zoo dissipation, qhov kawg lub teeb tso zis lumen yuav yog 120 × 80% = 96 lm / w

Raws li 96lm / w, lub hwj chim rau coj downlight yuav yog 9-10w.