... lub recessed adjustable los yog phab ntsa ntxuav downlight teeb nyob rau hauv lub qab nthab.... Cov no tuaj yeem rov qab los yog nto mounted thiab nruab nrab ntawm daim duab, ...
... hais tias ntawm thaj chaw tiv thaiv tau nce mus rau 23,561 los ntawm 22,000 hnub ua ntej, nws tau hais.... Ob qho CFL thiab LED kev nce qib tuaj yeem txo qis qis wattage los ntawm 75% lossis ntau dua.... raws li sab nrauv ntawm lub npog ntsej muag muaj tus kab mob siab tshaj plaws ntawm lwm tus neeg.