... :PMMA 2,Transmittance:93% 3,Beam angle:25 degree 4,for led spotlight,wallwasher etc 15 degree led optical lensItem name: KEY-22 ... .75mm(13.5mm with holder) bottom diameter:6.84mmBeam angle: 25 degreesMaterial: PMMAApplication: led spotlight, led downlight, led wallwasher light , led ...