This is a complete replacement for the light used on some 1965 and 1968 Airstreams.  It has one 1157 bulb in it providing stop, tail and turn functions.  

The zinc die cast housing is chrome plated.

This is a shallow depth unit that is only 1-1/3" deep from the bezel to the back of the housing.

Mounts through 4-1/2" dia. cutout.

It has two positive leads to the one 1157 bulb.  Ground must be achieved through taillight body.