These were ‘supposed’ to be legal for retro fitting, but I very much doubt that’s the case!
Think I’ll just get a good set of standard bulbs and fit some spots instead.
I think those 100w bulbs aren't legal in the EU...
And you should upgrade the wiring and maybe alternator if your going to be pulling more power.
The best option would be LED but I don't know if those are legal either. Many of the LED lights I have seen are labed "off road use only" ...