Nws tau hais hauv kev ua lag luam: cov lus teeb ci ntau dua LED hlaws, lub teeb ci dua lub teeb, uas tau ua txhaum tag nrho.
Qhov tseeb, nom tswv wattage thiab tus lej ntawm cov hlaws dai teeb tsis muaj kev cuam tshuam ntawm lub teeb ntawm lub teeb.
Dab tsi ntxiv, uas yeej ntsuas qhov ci ci yog lumens. Lub ci ci ntawm lub teeb yog nyob ntawm lub luminous flux.
Lumen hais txog qhov ntsuas qhov ntsuas tawm ntawm lub teeb nrig, thiab nws yog siv rau kev ua kom pom qhov ci ntawm lub teeb. Wattage yog hais txog lub zog siv los ntawm lub teeb nyob rau hauv qee lub sijhawm. Thaum nws los txog rau lub teeb ci, peb yuav tsum tsom qhov lumen ntsuas ntawm lub teeb ntau dua li lub teeb taws.
Piv txwv li 7W LED lub teeb pom kev zoo, luminous efficiency ntawm Ib hom teeb ci yog 80Lm / W, hos B lub teeb ci yog 200Lm / W, yog li luminous flux sib piv yog:
A: 7*80=560
B:7*200=1400
Lub sijhawm no, peb yuav pom tias B LED teeb pom kev ua kom pom lub teeb ci dua txawm tias ntawm tib lub wattage.
Dab tsi peb siv LED teeb hlaws dai tsuas yog Nyiv Nichia uas yeej yeej qhov khoom plig Nobel, thiab cov luminous efficiency yog 220Lm / W.
Yog li tsis txhob' t them nyiaj rau cov hlaws dai tsis tseem ceeb!
