I've ordered from SVC before, three times.
The first time everything went well.
The second time, they hadn't refined their new CCFLs enough, so I had a couple of bad 12" UV tubes, but they quickly sent me replacements (and I ended up being able to fix the old parts
).
The third time, I ordered 6" blue CCFLs (with dual inverter), and they sent me 4" instead. Now they want me to send them back these 4" tubes (and inverters), before they send me the right ones and they'll credit me the return shipping
[edit]Looks like they're going to ship me the right parts right away: that's the kind of good service I expect from SVC.[/edit]
The inverters are designed for one size of tube, and one size only.
I think SVC is actually a distributor of these CCFLs, to many of the on-line shops we know. I've seen them in a few different reviews, coming from various shops: some are re-branded, but it's the same product.