Pupillary Distance 45-74 mm Focus Distance 450mm Aperture Size 4.0mm, 3.0mm and 1.2mm Image Size 80.0mm, 60.0mm and 25.0mm Illumination Field Good, Clear Circular Field Lamp 3W Warm White Led Intensity Control Continuously Variable Filters Yellow , Red Free , Cobalt Blue IP Category 2X Power Supply Unit Power Input 110V/220V AC Output 3V DC Weight Net 1.5Kg and Gross 3.5Kg |