Municipal Vehicle Conversions
Shown on this page is 2018 Ford  F 450
Light bar mounted on fabricated 5/16 plate placed on the center of the headache rack bar using 3/8" bolts and with nylon lock nuts.

This a Feniex Fusion Dual Color LED Mini Bar

We set the flash pattern on this light bar to random.

When another switch is activated. Light bar turns into 360 degree flood  as shown in this video
We installed Feniex Fusion Surface Mounts 

We set the flash pattern to customers specs

Note: Flash patterns can be changed by wiring the flash pattern wire to a additional switch.
We installed Feniex Fusion Surface Mounts on aluminum angle brackets 

We set the flash pattern to customers specs

Note: Flash patterns can be changed by wiring the flash pattern wire to a additional switch.
Bringing all maximum allowed grounds from added lighting to a ground block as shown here obtains a solid and adequate ground. . Then route a heavier gauge wire from block to frame or body of vehicle to support all the grounds to the block.  Proper stud size on the block matters to support all grounds.