沙發燈落地燈是現在很多家庭都很喜歡的一種燈具，其往往透露一種低調又不失優雅的氣質，雖然它不像其他的一些主流燈具受歡迎的程度高，但也不乏追求者，那么什么是落地燈？沙發燈落地燈優缺點有哪些？沙發燈落地燈從字面上的意思就是放在地上用來照明的燈。用來為房間局部照明，同時也具有對居家環境進行點綴裝飾的作用。擺放的位置不能放在經常活動的區域。沙發燈落地燈一般是燈罩、支架、底座構成。沙發燈落(luo)地燈(deng)的材(cai)(cai)質一(yi)般是(shi)支(zhi)架多以金(jin)屬(shu)材(cai)(cai)料制成，燈(deng)罩的話一(yi)般是(shi)塑料材(cai)(cai)料制成的。

1、沙發燈LED臺燈珠損壞。這是很常見的故障，一般LED燈珠燒壞時，表面上會有黑點，仔細觀察能夠區分出來，對于這種故障維修，需要配備一把烙鐵，將燒壞的燈珠拆下來更換即可，若沒有沙發燈LED臺燈珠怎么辦？可使用(yong)150Ω左(zuo)(zuo)右的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻代(dai)替，若(ruo)是恒(heng)(heng)流(liu)(liu)(liu)源驅動可以直(zhi)接(jie)短接(jie)。2、濾波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)失(shi)效。簡易的(de)(de)LED燈一般將交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)經過(guo)容(rong)阻降壓(ya)后直(zhi)接(jie)整流(liu)(liu)(liu)，然后通過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)濾波給LED燈珠供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。若(ruo)該(gai)濾波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)失(shi)效會導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)不穩，直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)偏低，從(cong)而使LED燈變(bian)暗。用(yong)萬用(yong)表的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)檔測(ce)量(liang)該(gai)濾波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)容(rong)量(liang)，若(ruo)誤(wu)差(cha)(cha)較大(da)，誤(wu)差(cha)(cha)大(da)于(yu)30%左(zuo)(zuo)右說明(ming)該(gai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)已變(bian)質(zhi)，找(zhao)一個(ge)耐壓(ya)值以及容(rong)量(liang)都大(da)于(yu)等于(yu)該(gai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)參數的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)換(huan)上(shang)即(ji)(ji)可。3、容(rong)阻降壓(ya)模塊損(sun)壞，容(rong)阻降壓(ya)模塊由(you)一個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻并聯(lian)組成，可用(yong)萬用(yong)表測(ce)量(liang)其(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻是否損(sun)壞，若(ruo)損(sun)壞，找(zhao)個(ge)參數相當的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻換(huan)上(shang)即(ji)(ji)可。4、線(xian)路(lu)斷(duan)開。拆開LED燈，查看內部輸入輸出接(jie)線(xian)處是否有斷(duan)開的(de)(de)的(de)(de)情況，若(ruo)有，使用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)烙鐵將其(qi)焊(han)接(jie)固(gu)定即(ji)(ji)可。5、整流(liu)(liu)(liu)二(er)(er)極(ji)管(guan)故(gu)障(zhang)。整流(liu)(liu)(liu)二(er)(er)極(ji)管(guan)有開路(lu)、短路(lu)等故(gu)障(zhang)，可能(neng)是過(guo)壓(ya)過(guo)流(liu)(liu)(liu)引(yin)起，也有可能(neng)是長期使用(yong)失(shi)效引(yin)起。找(zhao)個(ge)反向(xiang)耐壓(ya)值大(da)于(yu)350V，工作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)大(da)于(yu)0.5A的(de)(de)整流(liu)(liu)(liu)二(er)(er)極(ji)管(guan)換(huan)上(shang)即(ji)(ji)可，比如1N4004~1N4007等。6、LED恒(heng)(heng)流(liu)(liu)(liu)驅動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)故(gu)障(zhang)。對于(yu)這種故(gu)障(zhang)需要有一定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子相關經驗(yan)的(de)(de)專業人(ren)員才能(neng)維修(xiu)，對于(yu)一般用(yong)戶來(lai)說，以上(shang)簡單(dan)的(de)(de)故(gu)障(zhang)查不出原因之后還(huan)是更(geng)換(huan)個(ge)新(xin)的(de)(de)LED燈吧。

上海沙發燈面(mian)(mian)(mian)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)表(biao)(biao)現面(mian)(mian)(mian)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)是指(zhi)室內(nei)天棚(peng)、墻(qiang)面(mian)(mian)(mian)和地(di)(di)面(mian)(mian)(mian)做成(cheng)(cheng)的(de)(de)(de)發(fa)(fa)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)面(mian)(mian)(mian)。天棚(peng)在光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)的(de)(de)(de)特(te)點是光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)照均勻(yun)，光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)線(xian)充(chong)足，表(biao)(biao)現形(xing)(xing)式(shi)多(duo)種多(duo)樣(yang)。如(ru)用日光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)燈(deng)吊頂(ding)(ding)，光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)線(xian)密度均需一(yi)(yi)(yi)致，以保(bao)每個空間都光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)線(xian)充(chong)足；又(you)如(ru)用大面(mian)(mian)(mian)積(ji)筒燈(deng)吊頂(ding)(ding)，天棚(peng)上(shang)有規(gui)律的(de)(de)(de)牛眼(yan)燈(deng)，猶(you)如(ru)夜空星羅棋布；再如(ru)結合(he)天棚(peng)梁架結構，設(she)計(ji)成(cheng)(cheng)一(yi)(yi)(yi)個個光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)井(jing)，光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)線(xian)從井(jing)格(ge)(ge)(ge)射出，產(chan)生別具(ju)一(yi)(yi)(yi)格(ge)(ge)(ge)的(de)(de)(de)空間效果。墻(qiang)面(mian)(mian)(mian)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)一(yi)(yi)(yi)般為圖片(pian)展(zhan)覽(lan)所用。把(ba)墻(qiang)面(mian)(mian)(mian)做成(cheng)(cheng)中(zhong)空雙層夾墻(qiang)，面(mian)(mian)(mian)向(xiang)展(zhan)示的(de)(de)(de)一(yi)(yi)(yi)面(mian)(mian)(mian)的(de)(de)(de)墻(qiang)做成(cheng)(cheng)發(fa)(fa)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)墻(qiang)面(mian)(mian)(mian)，其中(zhong)嵌有若干個玻(bo)璃框，框后設(she)置投光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)裝置，形(xing)(xing)成(cheng)(cheng)發(fa)(fa)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)展(zhan)覽(lan)墻(qiang)面(mian)(mian)(mian)。大型(xing)(xing)燈(deng)箱廣(guang)告也(ye)屬(shu)于此類照明。地(di)(di)面(mian)(mian)(mian)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)是將地(di)(di)面(mian)(mian)(mian)做成(cheng)(cheng)發(fa)(fa)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)地(di)(di)板，通(tong)常(chang)為舞池設(she)置，多(duo)彩(cai)的(de)(de)(de)發(fa)(fa)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)地(di)(di)板，其光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)影和色彩(cai)伴隨(sui)著電(dian)子音(yin)響的(de)(de)(de)節奏而同步(bu)變化(hua)，大大增強了(le)舞臺表(biao)(biao)演的(de)(de)(de)藝(yi)術氣氛。2.帶(dai)(dai)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)表(biao)(biao)現所謂帶(dai)(dai)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)是將光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)源布置成(cheng)(cheng)長條形(xing)(xing)的(de)(de)(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)。表(biao)(biao)現形(xing)(xing)式(shi)變化(hua)多(duo)樣(yang)，有方形(xing)(xing)、格(ge)(ge)(ge)子形(xing)(xing)、條形(xing)(xing)、條格(ge)(ge)(ge)形(xing)(xing)、環(huan)形(xing)(xing)（圓環(huan)形(xing)(xing)、橢(tuo)圓形(xing)(xing)）、三角形(xing)(xing)以及其它多(duo)邊(bian)(bian)形(xing)(xing)。如(ru)周邊(bian)(bian)平面(mian)(mian)(mian)型(xing)(xing)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)吊頂(ding)(ding)、周邊(bian)(bian)凹入型(xing)(xing)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)吊頂(ding)(ding)、內(nei)框型(xing)(xing)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)吊頂(ding)(ding)、內(nei)框凹入型(xing)(xing)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)吊頂(ding)(ding)、周邊(bian)(bian)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)地(di)(di)板、內(nei)框光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)地(di)(di)板、環(huan)型(xing)(xing)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)地(di)(di)板、上(shang)投光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)槽、天花凹光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)槽、地(di)(di)腳凹光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)槽等等。長條形(xing)(xing)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)具(ju)有一(yi)(yi)(yi)定的(de)(de)(de)導向(xiang)性，在人流眾多(duo)的(de)(de)(de)公(gong)共(gong)場(chang)所環(huan)境設(she)計(ji)中(zhong)常(chang)常(chang)用作導向(xiang)照明，其它幾何形(xing)(xing)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)帶(dai)(dai)一(yi)(yi)(yi)般作裝飾之(zhi)用。

1．觸控式觸控式沙發燈臺燈的原理是內部安裝電子觸摸式IC，與臺燈觸摸處的電極片形成一個控制回路。當人體觸摸到感應電極片，觸摸信號借由脈動直流電產生脈沖信號傳送至觸摸感應端，接著觸摸感應端會發出一觸發脈沖信號，從而控制開燈；再觸摸一次，觸摸信號會再借由脈動直流電產生一脈沖信號傳送至觸摸感應端，此時觸摸感應端就會停止發出觸發脈沖信號，當交流電過零時，燈自然熄滅。不過，有時停電后或電壓不穩也會有自行亮起的情形，如果觸摸接收信號敏感度極佳的紙張或布也是可以控制的。2.亮度可調式可調沙發燈臺燈(deng)(deng)的(de)(de)(de)工作原理(li)是(shi)由電阻(zu)(zu)R2、電位(wei)器(qi)RP1、電容(rong)C組成阻(zu)(zu)容(rong)移相(xiang)電路，調節RP1，即可(ke)改變(bian)雙向晶(jing)閘管V的(de)(de)(de)導(dao)通(tong)角(jiao)，從而改變(bian)燈(deng)(deng)泡EL的(de)(de)(de)亮(liang)度(du)。電阻(zu)(zu)R1為(wei)限流(liu)電阻(zu)(zu)。C的(de)(de)(de)充電速度(du)還(huan)與并(bing)聯回路有關(guan)。在(zai)R1、RP2固(gu)定的(de)(de)(de)情(qing)況(kuang)下，分流(liu)的(de)(de)(de)大小(xiao)由光(guang)(guang)敏電阻(zu)(zu)RL的(de)(de)(de)阻(zu)(zu)值來決定。當電網電壓(ya)上升時，燈(deng)(deng)光(guang)(guang)亮(liang)度(du)增(zeng)(zeng)加，RL阻(zu)(zu)值變(bian)小(xiao)，分流(liu)增(zeng)(zeng)大，電容(rong)C兩端電壓(ya)上升變(bian)慢，晶(jing)閘管V導(dao)通(tong)角(jiao)減小(xiao)，輸出電壓(ya)減小(xiao)，燈(deng)(deng)光(guang)(guang)亮(liang)度(du)下降(jiang)；反之，當電網電壓(ya)下降(jiang)時，RL阻(zu)(zu)值增(zeng)(zeng)大，分流(liu)減小(xiao)，晶(jing)閘管導(dao)通(tong)角(jiao)增(zeng)(zeng)大，輸出電壓(ya)增(zeng)(zeng)加，燈(deng)(deng)光(guang)(guang)亮(liang)度(du)增(zeng)(zeng)加。燈(deng)(deng)光(guang)(guang)亮(liang)度(du)就自動(dong)地(di)穩定在(zai)設定值。

客廳沙發燈落地燈它其實就是一種可以放在地面上進行使用的照明燈具。一般像客廳沙發燈落(luo)地(di)燈(deng)(deng)(deng)它都是(shi)(shi)布置在客(ke)廳或者是(shi)(shi)一些休(xiu)息區域(yu)里。通常它都會與沙發(fa)茶(cha)幾來配(pei)合使用(yong)，這(zhe)樣(yang)的(de)(de)(de)(de)話(hua)就能夠(gou)滿足客(ke)廳的(de)(de)(de)(de)局部照明(ming)，同(tong)時(shi)還(huan)能夠(gou)起到點綴裝飾家庭環(huan)境的(de)(de)(de)(de)作用(yong)。像(xiang)(xiang)這(zhe)種類(lei)型的(de)(de)(de)(de)燈(deng)(deng)(deng)具，它們對于客(ke)廳的(de)(de)(de)(de)裝修(xiu)來說(shuo)(shuo)非常的(de)(de)(de)(de)重要，使用(yong)這(zhe)種落(luo)地(di)燈(deng)(deng)(deng)能夠(gou)給整(zheng)個客(ke)廳帶來不一樣(yang)的(de)(de)(de)(de)照明(ming)感覺，能夠(gou)讓身處其中的(de)(de)(de)(de)人享受到不一樣(yang)的(de)(de)(de)(de)體驗。像(xiang)(xiang)現在家庭居(ju)室設計可(ke)以(yi)說(shuo)(shuo)與以(yi)前(qian)全然不同(tong)，現在的(de)(de)(de)(de)人們更加(jia)崇尚(shang)于現代簡約風。基本(ben)上對于整(zheng)個家居(ju)里面(mian)的(de)(de)(de)(de)設計都是(shi)(shi)以(yi)時(shi)尚(shang)獨特的(de)(de)(de)(de)風格來進(jin)行設計的(de)(de)(de)(de)。而(er)像(xiang)(xiang)這(zhe)一種客(ke)廳落(luo)地(di)燈(deng)(deng)(deng)它的(de)(de)(de)(de)使用(yong)可(ke)以(yi)說(shuo)(shuo)非常的(de)(de)(de)(de)普遍(bian)，這(zhe)主要還(huan)是(shi)(shi)因(yin)為(wei)像(xiang)(xiang)這(zhe)種落(luo)地(di)燈(deng)(deng)(deng)它獨特的(de)(de)(de)(de)造型以(yi)及(ji)方(fang)便使用(yong)的(de)(de)(de)(de)特點。

一、沙發燈落地燈的高度不宜過高，不應超過室內高度的四分之三，太高會影響美觀及效果，當然也不能過低，過低光會集中在一小片范圍內，效果更差，因此消費者需根據自家室內高度選擇合適的沙發燈落地燈。二、落地燈的燈罩，燈罩下沿不宜過高，如果燈罩下沿過高，燈泡的光會直接刺激眼睛，對眼睛造成損害，因此選擇帶有能有效防止燈光直射眼睛燈罩的落地燈即可。三、目前市面上沙發燈落地燈的款式主要是上照式、直照式及造型式三種，消費者可以根據家里裝修的風格，選擇適合自己的沙發燈落地燈。