coj tus nqi teeb lub teeb

Lub hom phiaj-teeb yog lub tuam txhab Tuam Tshoj rau LED teeb sab hauv tsev thiab sab nraum zoov.

Yog tias koj yog tus xa khoom thiab xav paub tus nqi rau teeb LED.

Tsuas yog hu rau kuv rau daim ntawv hais.