This light emits a fantastic multi-coloured display. There are 5 different sequences which you can change between by pressing the button on the side. Each style is made up of different combinations of red, green and blue light each with different patterns and displays, some flashing and some still. The multi-coloured effect is really beautiful. The dome shape means that the light reaches out expansively to illuminate the pool or room. A balancing cap is included so you can float it in your bath The underwater light show is also a great way to brighten up your swimming pool and jazz up your pool parties.