Any FHE with comparisons? Trying to decide. The XTreme's are a little more expensive, but from PIAA's website the only difference I can tell is they apparently have a slight bluish tint.  Seems odd they don't post any solid specs.

Thanks.

I am using the PIAA H4 SuperWhite . . . have tried other less expensive same K rating, no difference in illumination, just durability . . . PIAA seems to be more resistant to vibrations . . .

Thanks for the info. I used the Intense White bulb on my Monster, which seemed brighter than stock and definitely whiter, a bit sharper. But I don't think PIAA makes that model any longer, at least it wasn't available for the ST.

I'm a bit skeptical that the differences (if any) between the two justify the cost, so I went with the less expensive Night Tech's.

Once it's above freezing in my garage I'll plug the in and see if I can tell a difference.

But isnt the ST an H4 bulb?

Quote from: Darkmonster620 on November 23, 2013, 02:37:32 PM
But isnt the ST an H4 bulb?

I don't know about the newer ones, but mine has two separate lights; a dipped beam with an H1 bulb and a high beam with an H3.

check these links:

http://www.piaa.com/store/c/44-Powersport-Bulbs.aspx?Attribs=36

http://www.piaa.com/store/c/44-Powersport-Bulbs.aspx?Attribs=37

http://www.autoanything.com/lights/20A52524A1.aspx

http://headlightbulbs.com/h1_bulbs.php

http://headlightbulbs.com/h3_bulbs.php

I know you already purchased, but, I knew I had this info somewhere . ..  sorry for being late . ..

Thanks for the links. The PIAA links are exactly what I was looking at for info earlier, but there's really nothing useful there, particularly to compare their two models.

Finally got the bulbs in (what a royal PITA -took about 2 hours in a 40F garage). Definitely a whiter light but not by a huge margin. Have to wait for the ice to melt before a road test. I'm guessing I'll see a 10-15% improvement in visibility.

Given the pain and the cost (about $45), I'm not sure the juice is worth the squeeze...

As said, at least the info is here now, I have purchased from the headklight bulb place, those aint bad . ..  mostly for my car customers but I usually have to 're -aim' the headlights, they seem too bright for oncoming traffic, I had to lower my headlamp . .