You can buy 'normal' H4 Hella or Narva PLUS 50
H4 60/55w 12 volt Bulbs that are filled with xenon gas and a special coating on the bulbs to have an increase in Brightness...
50% Brighter on Low beam and 30% Brighter on High beam... No excessive heat and can last up to 65% longer than standard bulbs
If You drive with headlamps on all the time.... One night You will switch on... and nothing... as they blew during the day... this happened to Me recently... [Lancer]
Luckily, I always carry spare bulbs...
I have been using these PLUS 50s in My Lancer for a few years...
they are excellent... and are Legal...
100/90w bulbs are illegal and may only be used on off road vehicles in California.... :P:P
I only have standard H4 Halogen bulbs in New Hella semi sealed beams in My beetle and they are bright enough for Me....
I will change over to the Xenon bulbs next time they are on special....
I've noticed many trucks on the highway now have LED Lamps... I love the way they flash... and brake....[Brighter]
If You use an Electronic flasher unit, it doesn't need any load to flash....
they have an inbuilt relay to flash...
Lee
http://community.webshots.com/user/vw68autobug