My set from torqen came set up for right hand drive and was plug and play (not sure all sets come rhd though) obviously had to unscrew the ballasts from my stock lights and screw them onto these.
For indicator problem were for me my hazards came on each time I indicated ,on drivers side headlight there is a blue wire you snip to fix this problem.
Order some new O rings from torqen and they shouldn't leak and place some silica gel packs inside for safety.
For bulbs I used my old led set W5W sidelight
D2S bulbs for main beam
For indicator bulbs found it difficult to find a set that fitted perfectly but these are the correct fitment https://m.ebay.co.uk/itm/2-x-3157A-180-CAR-BULBS-AMBER-WEDGE-BRAKE-TAIL-FOG-REVERSE-INDICATOR-12V-27-7W/111245333422?hash=item19e6bd13ae:g:TdwAAOxyaTxTQJWB
Love the lights really to be honest much needed mod