Plastic moulded ray box featuring ventilated metal lamp housing.
One single slit and two triple slits provided with ray box which can be used simultaneously.
A 12 V, 2 A bulb with a vertical filament is used as a light source.
Pocket type magnifier mounted in single body with a metal cover which doubles as a handle fitted with a single lens of diameter 18 mm with a magnification of x 10.
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