| I've played with using HIDs on bikes and the issue with fitting them to the SS square lamp is its a single bulb headlamp (ignoring the sidelamp obviously) .
With the original lamp you have 2 choices , get a dual filament HID lamp that fits the base or get one that changes its position dependant on whether low or high beam is selected.
I've not tried the latter as it struck me as being something extra electro mechanical to fail . The dual filament hid is not without its issue either it needs two amplifier? packs (one per filament)
And one or both of the filaments arent centre to the original reflector so can compromise beam (may be **** cutoff/scatter /fail MOT etc) .
I found that the beam was a bit cluttered on low and badly distributed on high (on a round monster type headlamp). If the reflector is **** this will be worse and as the SS is a pretty old headlamp design it might just be **** as standard (as its not brilliant with a halogen) .
I've also fitted HID to modern projector style headlamps (separate bulb for lo and high) and they were very impressive on those.
Note MOT failure is also very likely as HID arent approved for vehicles with out auto leveling adjustment but the **** beam shape may make it more likely to fail.  |