Characteristics:The well positioned filament can be rotated for 360° and move upward and downward. Brightness of the streak can be adjusted.
Quickly and precisely measure the astigmatism axis.
The light can be converged, radiated and paralleled.
Automatic turning off effectively protects the bulb.
Two-steps adjustable brightness for bulb: S(Bright),W(Dark).

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

Product Tags:

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