Wooden Box for Sodium Vapour Lamp
The box is rectangular in shape and provided with slits on three sides equally spaced to enable three experiments to be performed simultaneously using one light source. Each slit is provided with a cover so that it can be closed when not required. Bulb holders of finest quality are fitted in wooden box with special cord.
a) Wooden box for 35 Watts S.V. Lamp
b) Wooden box for 55 Watts S.V. Lamp