Hi I went past a SPECS average speed camera today and wasn’t speeding but I noticed a post about 20 yards before it with 4 black boxes one on top of the other all at slightly different angles. The SPECS cameras didn’t have the IR unit next to it like the original ones did so wondered if these were IR flood lights or illuminators (as looked like the shape of a flood light) to improve image quality at night, or if they were additional cameras?