600 Watt 600W Electronic Digital Switchable Ballast Grow Light Set Includes HPS, MH Bulbs,...

This 600W hydroponics lighting system represents the best value grow light. Its advanced integrated electronic ballast supports both High Pressure Sodium (HPS) and Metal Halide (MH) bulbs, giving the grower the flexibility to choose the best selection simply by changing the bulb, instead of having to own two separate light systems.MH is used for accelerated vegetative growth, then switch to HPS to encourage flowering, fruiting and budding. Reasons to Choose Digital Electronic Ballast:  Fast startup - reaches full brightness in less than 1/4 the time of most magnetic ballasts  Completely silent - no more of the humming and buzzing  Small, compact design - most electronic models weigh less than 10 pounds compared to 44 pounds for magnetic ballasts  Longer bulb life - lumen output loss over time is dramatically less than with magnetic ballats  Electronic ballast lights both MH and HPS lamps  More lumen output - up to 20% more lumen output than regular ballasts  Heat sink technology - no fans to break down and make noise; fan-cooled ballasts have a higher failure rate Features:  Electronic ballast (600W)  Includes one High Pressure Sodium (HPS) bulb (600W) and one Metal Halide (MH) bulb (600W)  Electronic ballast works with both High Pressure Sodium (HPS) and Metal Halide (MH) bulbs  Electronic ballast is UL listed, CE certified  Two-year manufacture warranty on electronic ballast  Quality light reflector  Power cord included  Lamp cord included  Discreet packaging Light Fixture Specification:  Fixture Size: 18.5" x 15" x 4.5"  Total Weight: 19 Lb