[harmless smoker]

so i have i lamp socket and reflector for it and it says on the socket that the max watt is 250 on it, so if i buy a 150 watt hps bulb from Rona or wherever. do i still need a ballast?? also i just bought a 45 watt twisty cfl bulb it pumps out 3,000 lumens and is 4100K colour temperature it realllly big.

so first im asking could i use that 150 watt hps bulb on this 250 max light??

and second which light do you guys think that would be more efficient,150 watt hps or 45watt cfl???