The bowl is lit with an optic fibre (NB! Optic fiber light, not included), and a minimum of one 4 mm fibre is required. Even several fibres can be used according to personal taste and depending on how much light is required from the bowl.
Bowl dimensions: external diameter 320 mm, access hole diameter 285 mm, height 180 mm. If the projector of the set is equipped with colour change, the bowl and the water in it can be made change colour beautifully.