Those bulbs you are talking about are junk... don't even bother. If you do
want to get a better bulb, then go to Pep Boys, Advanced Auto or Autozone...
and pick up what they call plus 30 or plus 50... cost about $16... spend
anything past $20 per bulb, you are basically giving someone more money for
snake oil.
Other suggestion is use the fog light too... pull out that headlight switch
to activate the fog light... that's an instant double brightness.
Last suggestion is make sure your headlight is properly aimed... Quick test
is... On flat ground like your garage, measure from floor to middle of your
headlamp... then transfer that measurement to the wall... measure 0.40" down
from that measurement.
Park car 5 feet away from the wall... with low beam on... the top of low
beam should hit that mark. If you see that slight angle upward to the
right... then where that angle start upward (in the middle) is that target
point.
>> Stay informed about: '96 SL500 Headlight Bulb Replacement