What kind of lights are those? Any specs on them?
I had they custom made, they are just under 4000 lumens with about 120 degree light spread with no hot spots. The cable glands are German Hummel's rated to 90 meters and I have had them to 55 meters with no issues. The battery pack is a twist to turn on design with NiMH batteries giving about 45 minutes burn time, though you could change them to lithium ion batteries which would extend the burn time and reduce the weight.