The really sad thing is a setup of "federal 'K' minimum" primary/secondary lights made up of any modern light head would be more effective. As pointed out so many time before, at some point more becomes less essentially.
I was in the NW Houston area yesterday and saw a Cy-Fair EMS rig. The front of the box was lined with lights that looked to all be on; the overall effect that they were gently twinkling. 99% ineffective.
I remember when I worked EMS and my 2006 Ford Econoline Van only had the regular halogen flashers all around and one Code 3 XL bar with only 3 fricken rotators on it and me being the GIGANTIC FRICKEN WACKER that I am LOVED THE DAMN THING and it moved traffic like crazy with only those basic very crude halogen bulbs...... all I see is money being tossed in the trash when I see a rig set up like that.