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Percys Grow Room
  • Forum
    • Forum Awards
    • Members
  • Recent Posts
    • Add Thread
    • Unread Posts
    • Newest Posts
    • Stickies
  • Start a Thread
  • Guides
    • Sick Plants
      • Diagnose a Cannabis Plant Problem
      • Bugs Section
        • Spider Mites
        • Aphids
        • Fungus Gnats
        • Thrips
        • Homemade Pesticides
          • Neem Oil Pesticides
      • Deficiencies & Excess
        • Common Problems
        • Yellow Leaves
        • Nitrogen Deficiency
        • Nitrogen Excess
        • Phosphorus Deficiency
        • Phosphorus Excess
        • Potassium Deficiency
        • Potassium Excess in Cannabis Plants
        • Calcium Deficiency
        • Calcium Excess
      • Bud Rot
      • Powdery Mildew
      • Over Watering
    • The Basics
      • Slang & Terminology
      • What is Cannabis
        • Cannabis Indica
        • Cannabis Seeds
        • Life Cycle
        • Light Cycles
      • Starting a Grow
        • Buy Seeds
      • Temps & Humidity
      • Nutrients
        • EC Levels
        • Macro and Micro Nutrients
        • Nitrogen
        • Phosphorus
        • Potassium
      • Grower Safety
        • Staying Safe
      • Germination
        • Germinating Seeds
        • Planting a Seed
      • Vegetation
        • Topping
        • Transplanting
        • Grafting
      • Flowering
        • Sexing Plants
        • Control the Stretch
        • Grow Purple Buds
      • Harvesting
        • Washing Buds
        • How to Harvest
        • Tip Leaf and Trim
      • Drying Cannabis
        • How to Dry
      • Curing
      • Low Budget Growing
      • Organics
      • FAQ’s
    • Growing Indoors
      • Equipment
        • Lighting
          • Light Distances
          • HID Lighting
        • Extraction
          • Cover the Smell
        • EC Meters
        • pH Meters
      • Grow Tents
        • 60cm x 60cm
        • 1m x 1m x 2m
        • Grow Tent Insulation
      • Hydroponics
        • Growing in Coco
          • Buffering Coco
          • Starting a Coco Grow
          • Coco Growing
        • EC Meters
        • EC and PH Fluctuations
        • Auto Watering
      • Grow Lighting PAR
      • CFL’s
    • Growing Outdoors
      • Guerrilla Growing
    • Extracts & Edibles
      • Bioavailability & Dosing
      • Medical Capsules
      • RSO
      • FECO Oil
      • Coconut Oil
      • Types of Extracts
      • Decarboxylation
      • Dry Ice Hash
      • Rosin
      • Shatter
      • THC E juice
  • Diaries
    • Soil Grow Diaries
    • Coco Grow Diaries
    • Hydro Grow Diaries
    • Autoflowering Diaries
    • Completed Grow Diaries
  • Podcast
    • ITunes
    • Spotify
    • Stitcher
    • YouTube

400w MH

A 400w Metal Halide, can be used in 1m x 1m x 2m grow tent. Usually when plants are in late veg.

MH bulbs gives off light in the blue spectrum. The wattage can differ from 250w, up to 1000w. Bigger bulbs will be used in bigger grow rooms.

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These lights are in the HID category, and will use up a lot of electricity, and produce a excess heat. So it is important to ensure you have suitable extraction., when using this kind of grow lighting.

If you have questions, and you need answers quickly, sign up to our cannabis growers forum. There you will find a Q & A Section, where you can ask anything you like about growing cannabis. We have many experienced cannabis growers in our forum, and you will get an answer to your question quickly!

HID Lighting for Growing Cannabis

by percysgrowroom

HID Lighting is the most common type of light to grow cannabis indoors. It has been around for a long time, and growers have always produced great results when using HID lighting for growing cannabis. This keeps HID’s at the top of the list for favourites amongst growers. The term HID stands for High Intensity …

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Categories Equipment Tags 400w MH, 600w HPS, Dutch Passion, High Pressure Sodium, Metal Halide 2 Comments

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