Yield Lab Horticulture 400w HPS Grow Light Cool Hood Reflector Kit Easy Setup Full Spectrum System For Indoor Plants And Hydroponics &ndash; Free Timer and 12 Week Grow Guide DVD OPTIMUM COVERAGE: With the enclosed style air cool hood your bulbs are fully utilized and able to project all their power to your plants below with no light wasted. Keep your bulbs cool by easily attaching an inline fan to either of the two 6 inch duct ports on the hood. This is the preferred hood of professional growers for its unsurpassed quality, ability to consistently perform and ease of use INCLUDED COMPONENTS: 1x Yield Lab 400w digital dimmable ballast 120~240V (120V power chord included), 1x Yield Lab 400w high pressure sodium bulb (HPS), 1x Yield Lab Cool Hood Reflector, 1x ratchet light hangers, 1x FREE BONUS Analog timer and in depth 12 week grow guide HIGH PERFORMANCE SUPER LUMEN BALLAST: Featuring dimming control you can effectively reduce lumen intensity and heat as low as 50% for early stages of your plant growth as well as boost the output by 10% with the Super Lumen feature for later flowering stages. Industrial grade internal components provide steady power, increased PAR, eliminates flicker and boosted yields FREE BONUS 12 WEEK GROW GUIDE: Exclusive 12 week video guide that shows step by step instructions on how to successfully grow indoors and all the information you will ever need to grow seasonal gardens all year long or medical-grade crops. Whether your a first time or seasoned grower this guide has plenty of knowledge to offer you. The information provided is over 10 years of growing experience in just several days INDUSTRY LEADING WARRANTY AND TOP CUSTOMER SERVICE: Manufactures warranty covers your ballast for 3 years and bulbs for 1 year. Lifetime support by phone and email and 100% Satisfaction Guarantee High reflective surface utilizes all usuable light produced 6&#034; duct ports makes connecting fans and filters easy 99.99% Air tight seal provides optimal cooling for bulb when using inline fan Ideal for grow tents Dimmable with super lumen feature Open circuit, short circuit ignition failure and over heat protection ETL and CE Certified Silent cooling fan extends ballast lifespan Quick change fuse protects ballast from spikes in electricity High effeciency and high ETL and CE Certified High lumen output High heat tolerance for long lifespan