Shenhai Explosion-Proof
There’s no one-size-fits-all standard for this question.
Feem ntau, nyob rau hauv ib lub Hoobkas nrog qhov siab ntawm peb meters, Cov teeb pom kev zoo hauv qab 40W feem ntau yog qhov sib nrug ntawm ob mus rau peb meters. Rau qhov chaw siab tshaj peb meters hauv qhov siab, 50-70W fixtures yuav tsum, ntsia nruab nrab ntawm plaub meters. Txawm li cas los, the specific needs depend on your requirements for lighting efficiency.