Features:

 

1. The filament can be 360° rotated and move upward and downward.

2. Quickly and precisely measure the astigmatism axis.

3. The light can be converged, radiated and paralleled.

4. Continuously adjustable brightness.

5. Recharging conveniently and quickly.

6. Overcharge prevention protects the battery.

7. Optional head of ophthalmoscope.