Direct ophthalmoscope for fundus examination.
1. Lighting Form: Large Spot, Small Spot
2. Refractive compensation: 0 & plusmn; 1 & plusmn; 2 & plusmn; 3 & plusmn; 4 & plusmn; 5 & plusmn; 6 & plusmn; 8 & plusmn; 10 & plusmn; 12 & plusmn; 16 & plusmn; 20-25-30 (D)
3. Power Supply: 1.5V*2 "C" Battery (No. 2)
4. Light bulb: 2.5V/0.3A