1. Cov duab ntawm lub teeb yuav tsum tsis txhob nyuaj, yooj yim thiab dav yog qhov txaus nyiam tshaj plaws
2. Qhov qhib yuav tsum tsis txhob tig ntsej muag, uas yooj yim rau cov plua plav
3. Cov teeb hauv chav dej yuav tsum tsis muaj dej tsis zoo
4. Lub teeb yuav tsum tsis txhob ncaj qha mus rau hauv tib neeg lub qhov muag, uas yuav tsis xis nyob, thiab nws yuav tsum muaj kev tiv thaiv glare.
5. Nrhiav cov khoom lag luam loj, lub teeb thiab lub teeb pom kev zoo nrog 3C ntawv pov thawj
6. Xaiv cov khoom uas tsis muaj flicker thiab xiav daim ntawv pov thawj, RG0 yog qhov tseem ceeb .
7. Tsis txhob yuav cov coatings thiab xim, uas yuav ploj mus yooj yim tom qab ib pliag
8. Xaiv qhov kub thiab txias, qhov chaw sib txawv thiab lub tsev sib txawv yuav tsum tau siv cov xim sib txawv
9. Xaiv CRI 80 lossis CRI 95, tsis txhob xaiv CRI 70, siab dua CRI, qhov zoo dua, siab dua CRI ua rau koj lub qhov muag saib cov khoom zoo li lub hnub ci ntuj.
10. Nws yog qhov zoo dua los xaiv Aluminium vaj tse, vim Aluminium vaj tse muaj cov cua sov zoo, nws ua rau lub teeb lub neej ntev dua, cov vaj tsev yas tsis yog cov cua kub zoo, yog li nws ua rau lub teeb lifespan luv dua.
11. Xaiv cov neeg tsav tsheb sib cais, vim tias cov tsav tsheb sib cais yuav ua rau koj muaj kev nyab xeeb dua thaum siv, tus tsav tsheb sib cais ua rau koj tsis muaj kev nyab xeeb ntau thaum siv.
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