Description

High quality and low cost make this easy-touse
ray box ideally suited for junior high or high
school students.
It is durably constructed with a rigid vinyl base
and a metal box housing a transformer and a high
intensity light. An adjustable screen produces
either one wide beam or a choice of one, two,
three, or five slit beams, all of which can be easily
seen tracing a path across the table surface on
which the unit sits.
The Rive Ray Box operates on 120V, AC and comes
with a three-wire cord and plug. CSA listed, with
instructions for 15 suggested experiments.