wall and the colour that came out was awesome.First we plugged in the ray box into the wall and turned a knob on the valve container to 12 and put a light colour piece in front of the light and it made one colour or if you had put three of the colours pieces in front of the light it would make three colours at once. The experiment went ok because the light I wanted to make came through on the ceiling then I tried a different colour and I made a awful colour.What was a success well making the colour so my experiment was good
1 when I put a light piece in front of the ray box in the dark it made a colour on the ceiling or on the