1 Angle of Visual Field: 45°±5° 2 Range of Pupil Distance: 52mm~74mm 3 Input Voltage: 220V/110V 4 IIlumination: 6V10W halogen bulb 5 Weight (excluding head bracket): < 300g 6 Adju....
Illumination form: big spot, smallspot, slit, central net, redfree Diopter compensation: -35D~+20D Illumination bulb 3.5V/2.8W Halogenlamp Power supply: 220V/110V