yuav ua li cas yog tias coj teeb tsis ci?

Hauv qab no yog qhov laj thawj tseem ceeb dab tsi ua rau muaj teeb meem.

1. tshwm sim los ntawm LED
2. tshwm sim los ntawm tus tsav tsheb

Yog tias koj xav tau hloov LED lossis tus tsav tsheb, koj yuav tsum nrhiav kom pom tib lub LED lossis tus tsav tsheb uas muaj tib lub tam sim no thiab qhov hluav taws xob. Qhov ntawd yuav yog txoj haujlwm nyuaj.

Yog li feem ntau muaj peev xwm pov tseg lub teeb coj yog tias nws mus tsis zoo.