If I may add my 2 cents into this as I work at a plant that manufatures all types of fluorescents, specialty fluorescents and CCFl lamps. On the CCFL lamps in diameters from 2mm - 8mm, the lamps use a neon/argon gas mix with a gas pressure of aroung 50 - 60torr and only a few mg of mercury. the smaller the diameter and the longer the length greatly increases the lamp starting/ignition voltage. The highest is usually around 1200 volts and that is on a 2mm X 500mm lamp. Once the lamp strikes the operating voltage on the same lamp will drop to around 800 volts. The CCFL lamps use a very high voltage but a extremly low current, current levels are usually anywhere from 5 - 8mA. They are extremly efficent and if the lamps are driven properly the lifetine is up over 30,000+ hours. Also the phosphor used on the mini lamps (at least the ones we manufacture) use a Tri-band phosphor which is a red green blue mix. We have over 150+ differnt blents that we can use on these lamps. I know that sounds a bit crazy but the reason behind this is due to the LCD flat monitors are all differnt. If you pull a OEM lamp out and do not match it, it can throw the color of the dispaly way off, this is extremly important for us in Avionics applications.
On T5, T8, & T12 lamps there is ~20 mg of mercury in them. On compact lamps, there are nothing more than a smaller designed fluorescent lamp that operates in the same manor as a T5-T8-T12 type of lamp. There are differnt methods for these lamps, such as rapid starting, instant starting, and filiament preheat. This is all depending on application and ballast.
Sorry for the boring post but if it helps one person that it worked. If there are any questions you guys every have please dont hesitate to ask. If you want to see some of the applications that these products go into vist our website at http://lcdl.com not sure if you are allowed to post websites so sorry if that broke any rules.
Jeremy