Ballasts are complicated, expensive, put off an annoying buzzing sound, but necessary. Theb bulbs you got are worthless without one or two. But since I'm such a nice guy heres some good info The Cannabis Cultivation GrowFAQ - The Internet Hub for Marijuana Cultivation - Where can I buy MH/HPS lights? and The Cannabis Cultivation GrowFAQ - The Internet Hub for Marijuana Cultivation - How can I build my own HPS or MH light system? and dont forget The Cannabis Cultivation GrowFAQ - The Internet Hub for Marijuana Cultivation - How do I convert a common home security light into a remote ballast grow light?
I hope this helps.
peace