Njengoko sonke sisazi, i-LED ngumthombo wokukhanya ophezulu, kwaye iyathandwa ngabayili ngenxa yobukhulu bayo obuncinci. Kodwa ngokwenene banokubizwa ngokuba "bancinci" kuphela xa ulawulo lwe-thermal lungabandakanyekanga. Nangona kuthelekiswa nezibane ze-incandescent, ubushushu bayo bokusebenza buphantsi kakhulu, kodwa ngophuhliso olukhawulezayo lweshishini le-LED, zininzi kwaye zininzi iimveliso zamandla aphezulu zizalwa, kwaye ubushushu obukhulu buchaphazela ubomi beenkqubo zokukhanyisa ze-LED. Eyona ntsilelo inkulu ekuphuhliseni isizukulwana sokukhanya okusingqongileyo.

I-aluminiyam yendabuko yokushisa i-sink iya kunyuka kunye nobushushu be-LED. Akukho nkqubo yokupholisa esebenzayo, eya kuthi ekugqibeleni ibangele ukuba i-LED ivuthe. Nangona kunjalo, ukufakela inkqubo yokupholisa esebenzayo kuya kwandisa iindleko ezininzi kwaye yenze yonke inkqubo yokukhanyisa ibe mkhulu kakhulu. Ubhedu olunogwebu oluveliswe yi-Beihai Composites Materials lwenziwa kwindawo encinci kakhulu yomphunga kunye nenkqubo yombhobho wobushushu, oyisombulula ngokugqibeleleyo ingxaki yokulinganisela iindleko, umthamo kunye nefuthe lokutshatyalaliswa kobushushu, ngokukodwa ukutshatyalaliswa kobushushu be-LED. Indawo yophando yomvelisi.

Kukholelwa ukuba ingxaki yokutshatyalaliswa kobushushu ixazululwe, kwaye ii-LED ziya kusetyenziswa ngakumbi ekukhanyeni koluntu kunye nokukhanyisa kwiindawo ezinzima.