These lights are located in the very bottom cabinet of the case which petrude up into glass domes rise up above the surface of the habitat floor producing addtional light into the habitats base. Any color bulb can be used to illuminate the water surrounding the dome within a few feet.

The bright dome shown below can be dimmed.

   

UNDER WATER LIGHT IS DIMMED AS WATER FALL CASCADES DOWN ONTO IT CREATING A LAVA EFFECT