... hour >60000 hours 3.High efficiency induction grille lamp 4.No glare,no flicker grille light High Efficiency Energy Saving Induction Grille Lamp Material: ... and easy for mounting and maintenance3.Imported high pure aluminum reflector,high efficient illumination4.PC diffuser,anti-dazzle design, ... used in school,office building,shopping mall etc. High Efficiency Energy Saving Induction Grille Lamp