Kuv xav paub yog tias koj thov B7 lub teeb qhov muag txhais tau tias xim txheej.

Yog tias muaj, kuv xav piav qhia rau koj B7 lub teeb teeb raws li hauv qab no.

Peb lub teeb lub tsheb muaj xws li ntshiab, B1, B2, B3, B4, B5, B6 thiab B7.

B7 lub teeb yog xim tob tshaj plaws, uas cov xim kub yuav yog 6800K-7000K.

Hais ncaj ncees, B7 teeb qhov muag tsis yooj yim ua.

Txhawm rau ua kom koj pom tseeb B7 qhov muag teev, kuv yuav qhia koj daim duab hauv qab no.

Vam tias koj tuaj yeem muab sijhawm rau peb b7 qhov muag teev.

Vim peb lub teeb B7 zoo tshaj tus nqi thiab zoo tshaj plaws.