Looking at both bulbs i been only so far seen H4 uses more wattage but both bubls create same amount light intensity. Also why is it that sylvanias H4 says for motorcycle only????

 

the bases for H4's are different. not only that, the filament placement for H4's are vertical, while 9004's are horizontal. H4's are a different design and are used in the 2000-2001 Maxima's in USDM cars IIRC.

 

h4's give better light displacement

 

The Cefiro housings also use H4s IIRC. I am not sure but I think the H4 is better than even 9007 but could easily be wrong. I know 9007 destroys 9004.

 

literally...night and day.

9004 is just 2 pancakes on the wall.
H4 has a nice cutoff pattern.

 

the cutoffs are very sharp, as good as you'll get before going with projectors

 

yes that's why i tell people not to put HIDs in their 9004.

H4 fares a little better.

 

does anyone have pics discerning 9004 from H4? that would be nice.

 

i'm interested in this H4 bees knees...

Wouldn't the different filament arrangement screw up the light projection (reflection) resulting in the blinding of so many innocent drivers?

 

Yes, plus the base of 9004 and H4 bulbs are totally different, you'd have to do custom work to make them fit properly in the headlamps.

 

I think the wiring connectors are different too between the 2

 

the two are compleatly different. H4 is all metal, even has a shield in it for a nice cut off. 9004 are just plain old skool junk. You guys are getting me thinking........9004 to 9007 was good......how about 9004 to H4? that would take some work.........and I just may try it out.

 

I'm thinking since your a 4th gen you can probably somehow do a cefiero/4th gen hybrid since cefiero's use H4 bulbs according to the person who posted above

 

the thing is the bulb has to be in the correct spot inside the light to get a good pattern. And our lenses suck butt anyway. I have an extra 96 light to screw with....similar to the 3rd gen light. I guess there is only one way to find out huh?!

 

just go buy cefiro headlights if you want H4s. its made for H4 bulbs anyways.

 

<--9004

<--H4

 

if you're going to do all that work with 9004 to H4 might as well get a bixenon projector in there and call it the day.

 

Mr****s95SE because I think they look like **** on a maxima. I really hate the blacked out ones. They fit crappy, and just dont do it for me. Yes the beam patter is better but thats it. I cant justify splending that much money on a cosmetic only mod that fits horrible. If I had an I30 then I would do it.

DanNY youre right. thats the reason why I have not even considered the idea of H4. Projectors would be the way to go no matter what. But I may just get a $5 bulb and mess around.

 

 

yeah the fitment of cefiros are pretty crappy but im happy. as for the 9004 to h4 conversion, if youre gonna do it, good luck. looks like a lotta work.