吸頂(ding)(ding)燈(deng)能直(zhi)接(jie)吸附在(zai)天花板(ban)上(shang),光(guang)源(yuan)多以(yi)白熾燈(deng)為主,照(zhao)(zhao)(zhao)明(ming)方式一般為向下投(tou)射(she)、散(san)(san)光(guang)、全面(mian)照(zhao)(zhao)(zhao)明(ming)等。選擇吸頂(ding)(ding)燈(deng)尺寸時,先要考慮吸頂(ding)(ding)燈(deng)用(yong)(yong)在(zai)什么范圍。如(ru)果(guo)用(yong)(yong)作客廳(ting)光(guang)源(yuan),要選擇散(san)(san)光(guang)或者全面(mian)照(zhao)(zhao)(zhao)明(ming)型的(de)(de);餐(can)廳(ting)多選擇向下投(tou)射(she)照(zhao)(zhao)(zhao)明(ming)方式;臥室(shi)光(guang)源(yuan)需要柔和,可選用(yong)(yong)散(san)(san)光(guang)照(zhao)(zhao)(zhao)明(ming)。其次(ci)要考慮照(zhao)(zhao)(zhao)明(ming)面(mian)積。舉例來說(shuo),如(ru)果(guo)照(zhao)(zhao)(zhao)明(ming)面(mian)積在(zai)15平米左(zuo)右,那么吸頂(ding)(ding)燈(deng)直(zhi)徑(jing)(jing)在(zai)40cm為佳;如(ru)果(guo)照(zhao)(zhao)(zhao)明(ming)面(mian)積在(zai)20—35平米,則吸頂(ding)(ding)燈(deng)選擇直(zhi)徑(jing)(jing)60—70cm比較合(he)適。更大的(de)(de)空間(jian)可以(yi)選擇兩個吸頂(ding)(ding)燈(deng),采用(yong)(yong)雙照(zhao)(zhao)(zhao)明(ming)模式。