Here's some pictures of the Xenon Max Bulbs and as you can see they aren't white/blue like the Mtec's but the light output is very good.
If you are going to look at buying them
Please make sure you are buying the current +100% version and not the older +90% as there may be some of these still floating around on Ebay etc. and there is a noticeable difference of light output.
I got mine from
http://www.autobulbsdirect.co.uk
And i've fitted the H7 dipped, H1 Main Beam and the HB4 fog-lights (These are for the facelift Leon) the sidelights are Philips Bluevisions
I originally fitted them in October 2009 and should have left them in rather than messing around with the now useless Mtec bulbs. I've also tried the Philips Xtreme Power and Osram Nightbreakers and whilst very good I personally think the Ring's just edge it.
Picture with sides and Xenon Max +100% H7
Now with sides, dipped and HB4 fog-lights
and finally sides, dipped, fogs and H1 main beam
And just in case anyone mentions it I know i have a slight amount of condensation which is hardly surprising with all the bulb changing lately