Muujinta dhexda ee dhexda yar waxay doorataa P dhowr ka wanaagsan, tani waxay hubaal tahay in inta yar ee fogaantu, ay sii caddaanayso muujintu.Si kastaba ha ahaatee, doorashada gaarka ah waa in lagu sameeyaa iyadoo loo eegayo xaaladda dhabta ah ee mashruuca.

P2 ee kor ku xusan waxaa inta badan loo yaqaan masaafada yar ee u dhaxaysa shaashadda soo bandhigay LED, caadi waa: P2, P1.9, P1.8, P1.2, P1.5, P1.6, P0.9, moodooyinka sida caadiga ah loo isticmaalo waa xad P1. .2.

Haddii aad ku dhowdahay masaafada daawashada, waxaa lagugula talinayaa inaad doorato meel yar, sida shirka, kormeerka amniga, Huabonying Photoelectric waxay soo jeedinaysaa inaad doorato P1.25 meel yar oo iftiin leh ama P0.9 meel yar oo LED ah, dabcan, adiga sidoo kale dooran kartaa cob1.2 ama cob0.9.

Marka la barbardhigo bandhigyada LED-ga-yar-yar, bandhigyada LED-ka-yar-yar-yar ayaa la eegi karaa meel dhow, iyada oo aan waxyeello u geysan isha, iyada oo aan waxyeello u geysan shaashadda.

Laakin si indho la'aan ah u dooro nooc yar, miisaaniyada mashruucu waxay noqon doontaa mid aad u sarreeya, sababtoo ah qiimaha yar ee bandhiga kala-duwanaanta yar-yar waxay la xiriirtaa qaabka kala-fogeynta, maaddadu waa isku mid, kala-baxa yar yar, qiimaha sarreeya.Maaddada, kuulka laambada ledhka ayaa qayb weyn ka ah, suulaha laambada summada ah iyo kuulyada nalalka caadiga ah ayaa ka fog.Haddii kala duwanaanshaha qiimaha isla nooca kala dheeraynta ee bandhiga fogaanta yar ee LED-ka uu aad u weyn yahay, waxa ugu horreeya ee laga fikiro waa sumadda ay tahay nalka hogaaminta, ka dibna ka fiirso haddii xidhitaanka hal-joojin ah, xirmada buuxa ee soo saaraha, qaar ka mid ah qaataha ma aha rakibaadda xirmo iyo jidhka shaashadda iibka ka dib.