The Betts 510003 is a single-diode red LED lens insert in a shallow profile, terminating in two butt connectors for Betts 50, 56, 57, and 60 Series light housings.
The 510003 lens insert fits Betts 50, 56, 57, and 60 Series plastic body recessed and surface mount lamp housings as a direct replacement part. It provides a red, single-diode marker/clearance function in a shallow lens design and connects using two butt connectors.