Herno ntseeg hais tias: Tam sim no, LED cov chaw tsim khoom lag luam yuav tsum ntxiv dag zog rau lawv cov khoom tsim thiab cov txheej txheem yuav tsum muaj los txhawb cov tuam txhab ua lag luam nyob hauv qhov kev ua lag luam tias lawv cov xim puv zaub tswj tshuab yog qhov paub tab.
Cov khoom lag luam siab yuav tsum ua rau cov khoom lag luam zoo, nce kev nqis peev rau lub thawv tuag-pwm pwm, kom qhov tseeb ntawm kev txhim kho, thiab kev sib tw nrog cov tuam txhab txawv teb chaws' khoom.
Raws li qhov ua kom txaus siab cov haujlwm yooj yim ntawm cov khoom lag luam qis, nws yog qhov tsim nyog kom yooj yim tus qauv, txo nqi, tsim cov ntawv pov, thiab nce cov khoom xa tawm.