Decided to do a little "camp light" project. Sometimes I hate having the bright outdoor lights on, so I did some little puddle lights along the bottom edge of the truck. Enough light to find the stairs, but not be overly bright.
Start with cheap marker lights, they mount in a 3/4" hole.
Bottom flange that runs around the truck is ~1.25", works great, drill a 3/4" hole.
Pop in the rubber ring first, them slip the light in it.