Features:

1. The well positioned filament can be rotated for 360°and move 

upward and downward. Brightness of the streak can be adjusted.

2. Quickly and precisely measure the astigmatism axis.

3. The light can be converged, radiated and paralleled

4. Automatic turning off effectively protects the bulb.

5. Two-steps adjustable brightness for bulb: S(Bright) and W(Dark).

 

Specifications: 

Working Distance	1 m
Streak	3 mm-20 mm
Streak Rotation	360°
Illumination Source	3V/2.1W，Halogen Bulb
Input Voltage	AC220V±22V/50Hz±1Hz、AC110V±11V/60Hz±1Hz