Description:High power LED optical lens Application: Flashlight, spotlight, projector lamp, infrared monitoring and more Light Transmittance: 95% Diameter: Approx. 0.8 inch / 20 mm Inner Diameter for Installation: Approx. 6 mm Height: Approx. 0.5 inch / 13 mm Viewing Angle: 60 degrees Material: PMMA Color: Water clear Package Includes:5 x LED Optical Lens