Illumination form: large spot, small spot, no deficit, grid, slit, medium spot, compensated no deficit
Compensation filter: polarization filter, no red filter, no filter Diopter
compensation: 0 ± 1 ± 2 ± 3 ± 4 ± 5 ± 6 ± 8 ± 10 ± 15 ± 20 ± 25+40 (D)
Power supply: AC220V (50Hz); 3.6V rechargeable battery
bulb: 3.6V/0.7A