I got a 150w HPS ballast kit, socket, and bulb for just over $50 on 1000bulbs.com I live with in driving distance from one of there warehouses so I didnt even pay shipping. I love that placeThe issue here on the Metal Halide, is that I only have 4000k bulbs... They are useless for what our common goal is. It just seems that the HPS's are my best bet..