Teeb vaj huam sib luag LED

Hauv theem tsim qauv, Xiaosan tsom mus rau kev tsim cov kev daws teeb pom kev zoo tshiab uas haum rau cov neeg siv khoom xav tau. Peb pab neeg tsim qauv tshaj lij tsim cov teebmeem teeb pom kev zoo, sib xyaw cov thev naus laus zis tshiab, thiab npaj cov qauv theem kom tsim cov kev pom tshwj xeeb.