Features: -Quantum collection. -Run at 100% or 75% power. -Strike both metal halide and high pressure sodium bulbs. -Runs 15% cooler than other digital ballasts on the market. -Has a continuous Power Factor of 99%. -The most stable output frequency of any ballast. Product Type: -Grow Light. Color: -White. Dimensions: Overall Height - Top to Bottom: -3.15". Overall Length - Side to Side: -7.1". Overall Depth - Front to Back: -13". Overall Product Weight: -6.2 lbs.