I-glass sprinkler bulb iyisisetshenziswa esithembeke kakhulu nesomnotho esisetshenziselwa ukucupha ikhanda lesifafazi somlilo. Isibani esishisayo sisebenziseka kalula, esihlanganisa isibani esincane se-thermo esenziwe ngengilazi equkethe uketshezi lwekhemikhali oluzokhula ngokushesha lapho sichayeke emazingeni okushisa akhuphukayo, kuqhume isibani somlilo esiyingilazi ngezinga lokushisa elinqunywe kusengaphambili ngokunembile, ngaleyo ndlela kusebenze okokufafaza.