This is the heart of a great little hydro system I had going for about 6 months. Plenty of light to grow almost anything you want. Use one for veg and one for flower, or use both for flowering. You are getting two Sun System 10 Econo Grow 600 Watt HPS ballasts, two Hortilux 600 HPS bulbs, two mogul type high-dispresion wing reflectors, and all the wiring. The wiring from the lights to the sockets are super long so you can put the ballasts in another room to keep the temperature down. 600 Watt is what all the European growers use because it provides an incredible spectrum for the amount of energy used. This whole system was used for 12 hours per day for six months. The bulbs are still very bright and strong. Ballasts are generally very quiet with little or no buzzing. These two lighting setups were about $350.00 each (&700.00 total) when bought new. You decide what they're worth now.