optical led glass lens Dimension: 44.5*26mm Beam angle:60~80 degre Materil:glass ... glass lens1,Part Number: KB-GL-44.52,Material: Optical grade glass3,Beam angle: 60-80 degree, transparent surface4, ... Transmittance: 97%5,Working Temperature: -50°to +400°6,Dimension: dia 44 ... led flashlight, led torchlight etc9,Certificates: SGS ,ROHS optical led glass lens