Pic of 55W and 100W bulb

[2100]

Note that it the bulb chamber is a little closer to the base, and also the arc electrodes are also a little higher up....so effectively it'd be good for those lights which you need to put in some 2mm worth of keychain rings or spacers to focus. Now you don't need those spacers.....but throw will be reduced due to bigger arc length. The bulb base is metal, and the base is ceramic. Not plastic with heatshrinked as you can see for the 55W.
You cannot see it clearly in the photo, but the quartz and arc chamber thickness are visibly thicker.

Got it from aliexpress, search for "100W HID Xenon kit". Its under Guangzhou COSCON car accessories. Its 105usd free shipping with DHL so it costs the same everywhere in the world I think. 1 day for payment to clear via escrow, 1 more day for it to ship via DHL, collected it 3 days later.

 

[forexer]

is it possible to overdrive a 35w bulb to 100 input ballast watts? what about a 50w bulb? i ever tried removing the outer quarts layer of the bulb (the one that filters out some UV waves and glows blue) but i wasn't careful and ended up breaking the inner tube. I think we can get a little more throw if we removed the outer layer but the this thing would be a UV spitter too.