They have the cfl's that are equivalent to 60,75,100 watts. I would get a couple doesnt really matter what size. Unless you plan on using them for the entire veg. They also have bulbs that can convert your hps system to mh. Thats what I got a hps to mh conversion bulb. Works great. As far as the seeds go, I've never grown or smoked g-force. Good luck:jointsmile: