They can be used to DIY on vehicles. Partsam 31 LED Clear Lens Amber Lights
Dimension: 10.63 x 3.88 x 2.6
Hole-to-hole distance: 9.25
Color: Clear Cover Amber LED
Package Includes: 10 x 31 LED Clear/Amber Chrome Cab Marker Light (1 soft pad and 2 screws are included)