Txoj Kev Loj Hlob Ntawm Lub Rooj Teeb

Lub luag haujlwm li cas teeb pom kev hauv tsev. Nyob rau hauv tsaus ntuj nti, teeb yog elves thiab txawj tsim ib tug sov so cua. Los ntawm cov khaubncaws sab nraud povtseg ntawm lub teeb thiab duab ntxoov ntxoo, ua kom qhov chaw zoo dua; Thaum nruab hnub, cov teeb pom kev zoo tau hloov mus rau hauv cov duab kos duab zoo nkauj rau chav nyob, embellishing lub neej ua ke nrog cov rooj tog zaum, ntaub, thiab cov khoom dai.
Niaj hnub no, muaj ntau hom thiab hom ntawm lub rooj teeb, thiab cov qhov muag teev tau muab faib ua cov roj txuag hluav taws xob, cov roj teeb incandescent, thiab LED qhov muag teev. Cov txheej txheem tswj muaj xws li kev hloov pauv, kov tswj, kho qhov ci ci, thiab txawm tias lub suab tswj tau. Tab sis dab tsi cov neeg siv khoom xav tau yog cov khoom siv tswv yim, txuag hluav taws xob, thiab txhim khu kev qha. Raws li lub teb chaws "Tib Hlis Tsib Xyoo Plan", qhov nrov ntawm cov khoom txuag hluav taws xob xws li LED tau raug txhawb ntxiv.