Lee, their claims of 50% light without changing wattage are all pretty bogus
u cant improve a bulbs luminous qualities by not changing wattage and allegedly filling with different gasses
ive tried out the plus 50 bulbs b4 and side by sides theres no difference and in most cases the blue glass of "xenon" bulbs filters less light thro
the arctic blue bulbs i have just came with the headlight buckets
ive got one of each in the bug atm as a test and u cant even tell which one it is
i got the crystal headlight inserts of ebay theres heaps of ppl that sell them
most dont have parker bulbs in them tho but there only made of plastic so its not hard to drill them in
for ur 71 is it? easist way seeing as it would still have the old style lights is just got to a wreckers and get the headlight mounting hardware out of any old holden/ford/toyota that uses 7" sealed beams
theres mounting lugs in the gaurds u can utilise and just fit the standard vw headlight over when done
