Projects a constantly moving lava lamp image of up to 13ft / 4m onto walls or ceilings The halogen bulb, fitted, ensures low body heat, crisp colours and long bulb life Has a unique lava lamp formula developed by Mathmos, inventors of the lava lamp Ideal for Sensory Spaces, Children's bedrooms, relaxation and wellbeing Very simple to set up and use, a large range of extra effects and spares available from Mathmos