The Economy Parabolic system comes complete with a 42 inch Vertical Parabolic refector, Xtrasun ballast and standard high pressure sodium bulb. Wide even light distribution. The Parabolic reflector delivers all the light down to the plants in a massive footprint. It is lightweight and very easy to assemble. It has a built in socket and 15 foot cord to connect to the ballast. The Xtrasun ballast is extremely efficient and reliable. It boast a 5 year warrant, the best in it's class. The standard HPS bulb comes with a 1 year warranty. Built-in socket and 15 foot BAREF cord set. General Hydroponics exclusive new control kit is included in the bundle pack. Our kit contains pH Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the desired level), pH Down (uses food grade Phosphoric acid to lower the pH to the desired level), and pH Test Indicator (fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution). Pipette also included for easy transfer of all liquids. Make sure to clean the pipette between uses. This is another great product available exclusively from Hydroponics Market.