Size:SQUARE GU10 NOTE: IRON SIZE SAME TO ALUMINUM SIZE.PRODEM BRAND 10 PACK lamp cup holder Square led down light firxture rotatable round led lamps cup edge GU10 MR16 socket included.1, Aluminum frame2, Size: 91-91mm, cutout hole dia 50mm.3, Edge For MR16(GU5.3) GU10 LED spotlight.4, DIY kits, easy install.5, Beam angle can be rotatable, 120 degree.6, Silver, square shape.Please note: NOT included the LED GU10, only the frame+socket.WHY US?225331639.Item specifics:Item type: Lamp BasesBase material: AluminumFeatures: 120 degree rotatableCertification: CQC,UL,CCC,VDE,RoHS,SAA,ce,GS,PSE,FCC,LVD,EMCModel number: PRO-ZJ-AS10Warranty: 5 YEARMaterial: AluminumFunction: accessories for MR16 and GU10Install: DIY installDiameter: DIA50MMBeam angle: 120 degree rotatableColor : SilverShape: SquareFeature: led down light fixture