Vim tias h7 lub teeb bar thaiv cov khoom siv kub heev.

Ntau lub chaw tsim khoom ntawm h7 lub teeb bar thaiv cov khoom siv tau tsim.

Peb cov khoom siv hluav taws xob h7 yog nyob ntawm kev coj, halogen thiab zais.

Feem ntau ntawm cov khoom siv hluav taws xob h7 yog 12v thiab 24v.

Txhawm rau ua kom koj pom meej peb h7 lub teeb bar thaiv cov khoom siv, kuv yuav xa cov duab rau koj.

Lub caij no, tus nqi ntawm peb h7 lub teeb bar thaiv cov khoom siv pheej yig.

Thov tuaj nrog peb tham h7 lub teeb bar thaiv cov khoom siv txhua lub sijhawm.