Was ordering some MTEC Super White 4350K foglight bulbs and saw that they also have a Super White 4350K H4 for the headlights. Since I really like my MTEC Super White DRLs I figured I'd change my Philips Blue Vision H4 over to MTEC to keep everything in the same light color spectrum. The Philips are rated at 4000K so I did a side-by-side comparison between the two, to be honest I really didn't see much (if any) difference between them.
So here they are still in their original packaging (hope you can read Japanese).
Now with the covers removed.
And finally a side-by-side of MTEC H4 (right) and a Philips H4 (left). You'll notice that with the MTEC H4 the glass is a slightly darker shade of blue and the bulb itself is larger in size.
Original foglight bulb on the left side with the MTEC Super White on the right side.
Edited by: vwild1
So here they are still in their original packaging (hope you can read Japanese).


Now with the covers removed.

And finally a side-by-side of MTEC H4 (right) and a Philips H4 (left). You'll notice that with the MTEC H4 the glass is a slightly darker shade of blue and the bulb itself is larger in size.

Original foglight bulb on the left side with the MTEC Super White on the right side.

Edited by: vwild1