All in one box, just plug in and grow! Reflector and 600w Ballast, PP 600w HPS Lamp and Eazi Roll hangers. The Hobby is a complete horticultural lighting system, all in one box, just plug and grow. Each system comes with a PowerPlant Daylite Ballast, a high quality horticultural reflector, a pack of 2 Eazi Rolls to allow for height adjustment, hanging hooks and PowerPlant HPS lamp. Ready to use.