Disc, Turleigh
Wall installation:

A circular aperture of 110mm diameter is placed at eye level in a wall

A chamber behind the aperture contains two 5-watt fluorescent light bulbs at a fixed brightness

Coloured light (from a colour-changing floodlight installed above the aperture) floods the wall and causes the viewer’s perception of the colour of the aperture to gradually shift from orange to green to blue

A commission for an extension to a private house

2 x 5-Watt long-life fluorescent bulbs
Colour-changing flood lamp