I have a 100W MegaRay bulb that is for heat and uvb with a large reflection shade over the top (have a look on the megaray website and they have it as a package). It’s what was recommended to me by my local breeder and so far I’d recommend it.
No. Compact florescent bulbs are not safe for tortoises. You need a regular incandescent flood bulb for basking and a separate T5 HO UV(B) reptile rated linear florescent bulb for your tortoise. An additional ambient lighting LED/T5 linear florescent fixture and cheap bulb is optional if you wish to extend the life of the more expensive UV(B) linear florescent bulbs.
I personally do not recommend mercury vapor bulbs because there are not many different wattage levels to choose from. The heat and brightness of the bulb is very intense and may deter young tortoises from basking under them. They also can get too hot for closed chamber setups under 2 ft in height.