Yes it is a full Whelen DOT LED package. It also has a pair of amber vertex in the front turns, pair of TIR6 lightheads to the side, and some sort of FedSig LED beacon on the roof of the truck. (Not sure why thats there - it wasn't ordered)
Here is a video of the truck. It has since had the flash patterns changed. All lights are SigAlert and alternate with eachother.