1. Yes, the control voltage is 3 to 32 volts DC.
2. 3 Amps * 220 Volts = 660 Watts
3. The ballast of the fluorescent light will be an inductive load. I can't get a very good data sheet from your link. An SSR used with an inductive load can accidentally fire due to a high load voltage rise rate (dv/dt), even though the load voltage is below the allowable level (inductive load firing). You would want a snubber circuit in there. You also want a zero crossover SSR.
Finally the SSR maximum current is 3 amps. Do you really want to run a 3 amp rated SSR with a maximum load?
Ron