This Panelite marker light is longer than the M3 style, but narrower than the M1. It’s a nice in-between style with 3 single-function diodes.

Features:

• Measures 4″ x 1-1/4″ x 5/8″ (3″ mounting hole centers).
• Chrome bezel hides mounting screws.
• This light is a flush mount style light. Mounting hardware not included.
• This light is hard-wired with two male-end plugs, connected to the back of the light by a few inches of wire.
• These lights function at 12 volts.