Dab tsi yog qhov txawv ntawm -V lossis COM ntawm qhov chaw tso zis ntawm MEAN WELL lub zog hluav taws xob?
COM (COMMON) yog hais txog lub hauv paus. Cov cwj pwm ntawm MEAN WELL cov khoom sau npe raws li nws cov zis tau piav qhia raws li hauv qab no:
Ib pawg tso zis: zoo (ntxiv rau V), tsis zoo (-V)
Ntau pawg ntawm cov txiaj ntsig (cov hauv paus ntsiab lus): zoo (ntxiv rau V1, ntxiv rau V2.), tsis zoo (COM)
