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Digital Greenhouse Dimmable 400 Watt Grow Light

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SKU: GL-DG-D0400-B


  • Digital 400 Watt Dimmable Ballast
  • Your choice of bulb (Choose Between Either HPS or MH)
  • Reflector / Hood
  • 15 foot Socket / Cord setDIGITAL GREENHOUSE DIMMABLE 400 watt BALLAST
  • Run at 50%, 75% or 100% FULL POWER
  • Operates both Metal Halide and High Pressure Sodium Bulbs
  • Allows 50 Hertz to 60 Hertz (US or EURO voltages)
  • Runs 15% cooler than other digital ballasts on the market!
  • High Power Factor of 99.9%
  • The most stable output frequency of any ballast
  • Higher lumen output and more efficient than magnetic ballasts
  • Light weight and trouble free
  • 5 year warranty

What is up with DIMMABLE Ballasts?
Dimmable Digital Electronic ballasts are the latest innovation in High Intensity Discharge (HID) Horticultural Lighting Technology. The Digital Greenhouse DIMMABLE Digital Ballasts allows you to operate your 400 watt lamp at 50%, 75% or 100% Full Power! This is especially useful when you have young plants that do not need and cannot withstand the full output of 400 watts. You can start your plants under 50% power, then as they grow move up to 75% and finish them off with 100% full power. This saves you money on your electric bill and more importantly fullfills the lighting needs your plants require at specific stages of growth. It’s all about CONTROL! You control the output of the light your plants need when they need it!

Digital Greenhouse Digital Electronic ballasts have a proven track record of reliability and performance. Digital Greenhouse Digital ballasts are also one of the very few Digital Ballast to earn the U.L. Listing Seal of Approval that ensures the product is safe to use. Digital Greenhouse Digital ballasts offer a 5 YEAR WARRANTY (3 year full warranty, 2 year pro-rated) so you can rest assured this is a quality product that will give you many years of solid performance.

  • 15′ Universal Socket Set
  • 15′ Heavy Duty Cord
  • Specialty Plug fits into ballast receptacle
  • 5KV Pulse Rated Porcelain Mogul based socket fits all major brand High Intensity Discharge (HID) mogul based lamps!
  • Universal design fits many types and brands of reflectors including High Yield Lighting, SunLight Supply and more!
  • Allows you to remotely located ballast away from plants.
  • Makes upgrading/changing reflector types simple, fast and easy!
  • Top Quality, Steel Construction
  • 15′ Heavy Duty Cord length between receptacle plug and socket housing.

The recommended square foot coverage (area measure on the floor space of a garden) for a 400 watt system is roughly 9-16 sq/ft.

Please note this is just a basic recommendation and depending on your particular garden or plants (and even reflector style) you may be able to use this light in a smaller or larger area than the suggested area of coverage. As a general rule, a garden cannot have “T”o much light”. Meeting the plants demands for water, nutrients and CO2 must be met with increased light intensity to achieve optimium plant growth. Heat is often also a concern in any indoor garden and growers must be prepared to deal with ventilating the heat generated by a lighting system (and humidity produced by the plants). Different reflector styles also lend themselves to different sized gardens. Extra-Large reflectors like the SunSoaker or AiroFlow are designed to accomodate a large garden area while the MaxWing and others are best for modest, medium sized gardens. Using Air Cooled Reflectors is also suggested as they greatly facilitate containing and removing the heat generated by the lamp/bulb. Please visit our eBay store for other reflectors and bulb configurations available with this system.

SKU: GL-DG-D0400-B Categories: , , Tag:

Your Garden's Success is our #1 Priority

HTG Supply is committed to providing you with the very best products, pricing and service in the industry. We will ship your order fast and discreetly packaged to protect your privacy. Buy with confidence knowing your HTG Supply purchase includes simple returns as well as lifetime product support. Call our team of real growing experts with your purchasing or product use questions, and we will be here to help!

See it for less somewhere else? Give us a call and we’ll beat any online competitor’s price!

Customer Service:  1-866-710-GROW (4769) | [email protected] | Hours: Mon-Fri 9:00 a.m. to 5:00 p.m.




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