1. Cov neeg coob muab tso rau qhov tseeb: Raws li cov ntxaij vab tshaus hauv tshuab hluav taws xob tau raug txhawb rau kev ua neej nyob hauv lub neej, kev tshaj tawm tshwj xeeb tuaj yeem tso rau ntawm pawg neeg tshwj xeeb los muab cov kua dej tau zoo rau cov neeg tshaj tawm.
2. Tshaj tawm rau kev tso kawm hauv cheeb tsam: Piv txwv, cov tshaj tawm hauv lub nroog qhov chaw tsuas yog xav tso rau kev tshaj tawm hauv cheeb tsam lub rooj hauv nroog kom ua tiav cov txiaj ntsig kev tshaj tawm, thiab lub vijtsam hluav taws xob tuaj yeem ua tiav thaj chaw.
Cov nqi hluav taws xob LED tso tawm, muaj cov khoom siv theem, theem teeb pom kev zoo, theem tsim, theem suab, theem tom qab, theem kev tsim kho, theem khoom teeb pom kev zoo, khoom siv theem, LED teeb pom kev zoo