For the FJR you're going to be talking about additional fixtures (meaning driving lights)
is Warchild's example. Cula de gato I think is the Spanish version of Cat's ***!
Or another installation example since some modification is needed at
Here.
PHIDs are the deluxe and definitive answer for tons of light for little wattage. They're made by Philips and imported by
Catfish Racing. They're $700 price range.
There may be headlight bulb conversions out there, but concensus seems to be that since the H4 bulb is a purpose built unit for halogen technology and houses both the high and low beam--the conversion either limits you to a single high replacement and bulb shrouds. Clunky and decidedly non-FJR.
The other option and you're probably meaning with the word PIAA is which halogen options there are. PIAA is, of course, a manufacturer of driving lights and the long-time staple of the community has been the 910 model. No longer manufactured, there are some still around for sale new in boxes--at a price. Remember that going the 910 route may mean tapping out the alternator of juice with the 110 watt bulbs.
Other models include the 1000, 1100, 1100-XT, etc.
Cyclegadgets is a good site.
Another options in the economy route are Hella brand FF50.
Clicky here for some pictures. I personally have these installed and am happy for the combination of value $40 for lights, some people have found brackets for $30, they produce a pretty good cone of light (NO way a substitute for PHIDs though), and look pretty good on the bike. The 55w times two eats into my alternator reserve, but doesn't tap it out.
This help frame your research a little bit?
I'm asking for PHIDs for Xmas though......for myself.