Hello, i just got my 250W hps bulb recently, and i had also ordered a 15 foot cord for it. i got the cord today, and the bulb fits nicely into it, but the plug is quite different. i think its supposed to be connected into a ballast. i didn't want to spend alot of money, and thats why i didn't get the ballast, but i am wondering how i could just connect my bulb into an outlet with a cord or something. in the meantime, i am stuck and don't know how to use my bulb without buying a ballast. i would really appreciate any input with regards to this type of bulb. would a hardware store have any cord that i could just use and connect directly to power? thanks .