600 Watt HPS Grow Light System with 6 in. Large Air Cooled Hood Reflector with Glass Item Weight:35 WA01 Warranty Code N Assembly WA01 Warranty Code N Assembly Required yes Color crimson Fuel Type charcoal Housing Material porcelain enameled Ignition Type no ignition system Number of Wheels 2 wheel Front Side Shelf no Grate Surface Material plated steel Nominal Height 40 inch Nominal Width 23 inch Primary Cooking Area 363 square inch Total Cooking Area 363 square inch Nominal Depth 27 inch Cooking Diameter 22 inch Built In Thermometer yes Primary Cooking Area Range 201 400 square inch Designed with front opening to protect the contents of the mount box Digital ballast lighting systems generate roughly 30% more PAR (photo synthetically active radiation) for every watt of electricity consumed compared to the magnetic (core and coil) ballasts of the past Each grow light system comes with a plant specific HPS (high pressure sodium) bulb designed specifically for horticultural use