Illumination form: Big Spot, Slit, Net, Red Free

Diameter of filter: 0.2~0.4mm

Illumination brightness: ≥80IX

Dioptor compensation: -35D~+20D, 24 in total

Illumination source: 3.5V/2.8W, Halogen Bulb

Power: AC220V/50HZ or 110V/60HZ

2# Rechargeable Battery

1pc Ophthalmoscope head