Me pitch LED zaub cov ntxaij vab tshaus xa mus rau sab hauv LED cov ntxaij vab tshaus nrog LED dot qhov sib nrug ntawm P2.5 thiab hauv qab no, feem ntau suav nrog cov khoom siv LED xws li P2.5, P2.083, P1.923, P1.8, P1.667, P1 .5, P1.25, P1.0, thiab lwm yam.