Tsis ntev los no peb tsim ib qho tshiab Xim LCD Lux meter, thiab saib cov lus qhia hauv qab no:
Pom pom lub teeb tawm los ntawm lub teeb fluorescent, hlau halide teeb, high voltage sodium teeb lossis teeb incandescent tuaj yeem ntsuas. Ib lub lux yog lub teeb tau txais nyob rau saum npoo ntawm lub tswm ciab nrog ntsug siv ntawm 1 meters thiab thaj tsam ntawm 1 square meters.One FC yog lub teeb tau txais nyob rau saum npoo ntawm 1 nti square feet ntawm qhov deb ntawm 1 feet ntawm ib qho tswm ciab nrog lub teeb siv
