pabrik cahaya Cina dipingpin downlight 900 lumens

Sabaraha watt pikeun 900 lumens dipingpin downlight?

Ieu bakal 9-10w. Upami kaluaran lumén LED nyaéta 120lm/w, CRI 80

80% dissipation cahaya, lumen kaluaran lampu finish bakal 120 × 80% = 96 lm / w

Dumasar kana 96lm / w, kakuatan pikeun lampu handap dipimpin bakal 9-10w.