i got mine off ebay for 36quid which i consider a very good price, it didnt have a fancy ip66 box and it was one relay for headlights and one for spots plus fuses for each relay. the relays sit between battery and wing and are fine, in 3 yrs i have not had a problem with it, £75 is a bit of a pi1sstake. with mine iirc the only wires you cut are the ones which come from the stalk which control high/low beam