why so many is because budget basically.
the roof bar is from china which equals like 50m of light forth but pretty decent to the sides.
the smaller light bar on the hood is for distance, reaching about 900m @ 0,25 lux, 450m @ 1 lux.
and the 5 round one's was originally the idea for distance, but i got the smaller bar for a good price. now they serve as distance and ditch lights.
basically, having a light bar on volvos (mostly winter beaters) is just a thing here in sweden. i wanted to try it out but had no job at the moment, so i bought the roof bar. wasn't happy, so i bought the 5 round ones from a friend. at this point i had about 200m good visibility, but i like going all out on stuff, so when the small led bar was on sale i bought that one.
all in all put down 3,5k swedish kr, which equals about 350eur. i'd say i'm getting about 500m decent visibility forth, and 20-30m to the sides. for the money, i'm really happy, but for the future plans, this is nothing.
i'm saving money for next years light build, and next year it ain't going to be budget.