that extends beyond the gunite 25 surface 32 in another preferred embodiment the edge does not extend beyond the gunite 25 surface 32 in one preferred embodiment at the area between the back surface 30 of a light 20 and the gunite 25 surface 32 of the pool a foam insert not shown is positioned in this opening 40 prior to inserting the light 20 into the underwater connector 16 the light assembly 20 is connected into the adapter 22 via connectors 42 such as in a preferred embodiment by bolts such as three bolts 42 in one embodiment the bolts 42 engage respective receptacles 43 in the adapter 22 in another preferred embodiment connectors such as bolts 42 engage respective receptacles not shown in the swimming pool wall in another preferred embodiment an adapter 22 and connector 16 are a single integrated unit wherein the receptacles 43 are disclosed in this integrated unit as illustrated in fig2 the light 20 connector 16 and or adapter 22 will include an alignment pattern mark 45 such as a notch 45 wherein the light 20 may only be engaged into the connector 16 in one direction the bolts 42 are tightened until a watertight seal is formed between the light 20 and the adapter 22 and or connector 16 in a preferred embodiment a watertight indicator 35 is provided such as a reverse plunger wherein when the light 20 is properly secured the plunger 35 which starts beneath the surface of the outer lens cover 33 of the light 20 rises as the bolts 42 are tightened until the light 20 has.