1, saum npoo ze
A, 80% siv rau hluav taws kub rated qhov rooj.
B, yooj yim rau installation.
C, qhov hnyav sib txawv.
D, hluav taws kub rated max 3 teev.
E, pheej yig.
F, UL daim ntawv pov thawj.
2, zais ze zog
A, kev siv tsawg rau hluav taws kub rated qhov rooj.
B, kim.
C, qhov hnyav sib txawv.
D, feem ntau siv rau cov qhov rooj ntoo.
