THUNDER (TM) GLK400ESSML6 400-Watt Light Digital Dimmable HPS MH Grow Light System for Plants with EcoSun (Small) 6-Inch White Air Coolable Reflector for Plants with Easy Location Mounting - 5 Years Manufactures Warranty 1 x 400 Watt ballast features a high power factor, high luminous efficiency, adjustable wattage output, and works on 120v or 240v, worldwide compatibility! Compatible with HPS and MH bulbs. Lamp Dimming Option From 50% / 75% / 100% with extremely 99.9% Efficiency. Most forgiving power-source. You can run lights up to 65' away from the ballast and this ballast will increase lumen output by a whopping 30% without using anymore electric over traditional ballasts! 5 Year Warranty that is equal to the best in the business. Coupled with the quality construction and the fact that it runs 30% cooler than other ballasts, this is one of the best choices in the market. 1 x 400-watt super HPS Bulb and 1 MH Bulb. Ballast and Reflector have a 5 Year Manufacturer Warranty ! 1 x Pair 1/8" Adjustable Grow Light Rope Rachet Hanger with Patented SUREGrip. SUREGrip's patented system pulls tight, locks in place, will never break or slip, and will not rust. 8 ft Rope Carbon Filters or ventilation equipment. Maximum weight capacity is 150 lbs. a pair. 1 x Thunder (TM) 24 Hr Dual Outlet Grounded Timer for Ballast Light. Dual Outlet Mechanical Timer allows you to control two(2) devices with one timer. It comes with a manual constant ON override switch and can be set in 15 minute intervals. This timer is only for indoor used. This timer is only for indoor used. THIS WILL WORK FOR HOUSEHOLD APPLIANCES OR HYDROPONIC LIGHTING OR BALLAST. Works perfectly with THUNDER BALLAST and LIGHTING. 1 x THUNDER (TM) EcoSun Small 6-Inch White Air Coolable Reflector for Plants with Easy Location Mounting (5 Year Manufacturer Warranty !) Dimension 24" x 13.5" x 7.5" (L x W x H) / Vent Size 6", Compatible with High Pressure Sodium Bulbs (HPS) and Metal Hallide Bulbs (MH) 250W  1000W. Compatible with Square or SL Reflector Light Socket Connection. Socket is compatible with E39. V-Hangers included. Unit Weight 18 LB