• It comprises of a ventilated lamp house having an open front with extended sides finned externally for heat dissipation and vertical internal grooves to accommodate a slit plate and a cylindrical lens.
  • It has a light source comprising of a 12 volts, 21 watts lamp in a holder with one meter of twin flex, having banana plugs.
  • It comes complete with a metal plate having single and triple slits and which is whitened on one side with the other side black matt.
  • It operates on 12 Volts power supply.
  • Thus, the ray box creates beams of light when combined with combs or slits, allowing pupils to study properties of light.


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