YOOLUX Hydroponic Growing System 1000 Watt Digital Dimmable Electronic Ballast for Metal-Halide or High Pressure Sodium (MH or HPS) Grow Light, 1000W, (Purple). Dimmable featuret: Adjust level: 400W; 600W; 1000W; Super lumens(1100W), allows you to run different power output grow bulus. Operates on 120/240V, 50/60Hz power supply. 8ft 120V heavy-duty power cord included. Overheating Protection&Circuit safety Protection:YOOLUX Ballast internal fan is very quiet and keeps all parts cool and running smoothly, External breaker system protects against power surges.Consistent Light Output:YOOLUX Digital ballasts provide a more consistent electrical current to the plant bulb, resulting in a longer lasting bulbs that function at a higher level with minimal to no flickering. High Efficiency: Reduces wastage and improves efficiency with higher up to 20% more lumen output than some old style magnetic ballasts. CUSTOMER CARE: "CUSTOMER FIRST" is our goal, Our YOOLUX support team 24/7 stands by to Solve customer product usage problems. Any product you return must be in the same condition you received it and in the original packaging. We usually respond within 24 hours on weekdays. Thank you for shopping at our store. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics\Grow Lighting & Accessories\Grow Light Ballasts". The seller is "md-tech2011" and is located in this country: US. This item can be shipped worldwide.