Brightness LED (CD/m2)

Brightness hais tias nws qhov muag lub launching khoom los ntawm ib yam kev taw qhia uas siv lub teeb. Chav tsev yog candela ib square metre [CD/m2], tus cim l, ntawm cov uas lub teeb nyob hauv ib qho kev taw qhia uas luminous flux rau ib chav tsev tau lub ib cheeb tsam tsev, nws yuav muab 1 cov square ' meter ' rau ntawm qhov chaw generates ib candela ntawm kev siv luminous 1.