Yup ProGro is right. You have no place to stick that bulb, aka, no hood which is more money. You would most likely be better off just buying something from a local grow shop. If anything you can actually haggle with the owner for a lower price and *most* grow lights come pre-assembled or at least close to it. Also you have the factor that the hood was designed for good airflow so your bulb will run cooler and last longer.
Paht_Hed Reviewed by Paht_Hed on . Building a HPS is cheaper? I was going to buy a 400 watt HPS light from a hydro online store when I had an idea. I looked into just buying the components of the HPS ballast and then the bulb. I found a site that sells them but I was wondering if this is all I need for a functional 400 watt HPS system? I think I may have to add a cord and socket to the ballast but it's alot cheaper in the long run. Is this all I need? Ballast (needs cord) Rating: 5