Cov lus txhais ntawm lub tsheb them nyiaj
Cov khoom siv hluav taws xob sab saum toj xa mus rau cov pa hluav taws xob tsis zoo uas siv hluav taws xob roj tsheb (12V rau tsheb, 24V rau cov tsheb thauj khoom), uas siv dav hauv cov roj teeb lithium rau ntau yam khoom siv thiab cov khoom siv tau.