a locking pin 58 anchored to the post section 161 by chain 59 and adapted to enter a hole 57 through the walls of the post section 161 for locating the intermediate section at a predetermined elevation or extended position with respect to the base or bottom section 161 in a similar fashion the intermediate section 162 is equipped with the thumb wheel locking bolt 55 and pin 58 for cooperation with the top section 163 a planar flange cap 133 is mounted across the upper end of the top section to which is secured a cylindrical mounting pin 167 corresponding to the pin 135 associated with the mast structure illustrated in fig1 and 18 for example pin 167 is adapted to be received within the mounting sleeve 155 of an associated spotlight 32 34 and secured in position by tightening the clamping bolt 156 as previously noted in fig2 two portable post assemblies 160 are illustrated for mounting one of the light bars such as bar 28 therebetween remotely of vehicle 20 it will be recalled that the several lights and lamps associated with the vehicle 20 are powered over the control console 37 and to that end reference is now made to fig2 of the drawings as there shown the console 37 has a distribution panel equipped with six switches arranged in two banks indicated generally at 170 and 171 bank 170 comprising a master power control switch a light bar control switch and individual control switches for the two spotlights 32 and 33 associated with light bar 28 in similar fashion the switch bank 171 comprises master control switch a light bar control switch and individual spotlight control switches the console also presents six weather covered female connector outlights.