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Types of Lights to Grow Marijuana

Determining what type of lamp to use when growing marijuana in small areas.

How much money you have to spend is the top determining factor when choosing the best type of lamp to use in your marijuana grow room. High Pressure Sodium lamps are universally known as the best all around grow lamp. They are the most costly to purchase and setup. The colour spectrum is highest in the yellow, orange and red end, which makes the HPS especially suitable for flowering.

Cannabis grow areas should receive 1000-3000 lumens per square foot. A great goal is to get around 2,000 lumens per square foot. During the vegetative stage, plants stretch out when they receive low levels of light. The higher the level of light, the tighter the buds will be. Normally a 1500 watt lamp with shade will be good in a 10 x 10 square foot room. Some cannabis growers prefer a lot more.

TIP: You've got to use the proper amount of CO2. More intense light requires greater amounts of CO2 for maximum marijuana plant growth.

When you go to determine what size lamp to buy, take into account the square footage of your garden. That will tell you the lumens you need. Then keep in mind when buying the lights you want to limit the number of ballasts, so higher intensity lamps are best.

Marijuana Lamp Types

High Intensity Discharge Lamps (HID's) - High intensity discharge lamps are efficient and easy to maintain. Don't bother with anything low wattage, they are basically for household and outdoor use. They come in two types:

1. METAL HALIDE or MH lamps emit a white light that has a blue tinge to it. The metal halide is usually best for the vegetative state.

2. HIGH PRESSURE SODIUM or HPS lamps emit a pink to orange light. HPS lamps are much more efficient than MH lights, producing more light and less energy consumed. They are often used alone with no detrimental effect on the plants, and will promote faster plant growth than MH lamps during flowering. There are new types of HPS lamps coming out. Visit your local hydroponic store for specifics

3. LED or Light Emitting Diodes are the newest rage in growing marijuana lamps. The LED light system stays cooler than any other light. The LED costs less using up less energy. Less cost, less heat and less energy consumption means less chance of getting discovered.

Marijuana Growing Guide Free Library Listings

New Growing Guides

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Increasing Marijuana Yield
Regenerating Harvested Marijuana Plants
Organic Marijuana


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Indoor Marijuana Cultivation Guide
Indoor Marijuana
Dehumidifying Your Marijuana Growing Room

Outdoor Marijuana Cultivation

Simple Steps For Outdoor Marijuana Growers
Phases of the Moon for Marijuana Growing

Growing Marijuana Outdoors


Hydroponics 101
Marijuana Hydroponics
Why Grow Hydroponic Weed
Hydroponics Should Be Easy
Hydroponic Aquafarm Plan

Marijuana Hydroponic Systems
Marijuana Hydroponic Principles
Quick Marijuana Hydroponic Garden Set Up


Marijuana Plant Abuse
Female and Feminized Seed
Cannabis Nutrient Disorders
Nutrient and Deficiency Table
Troubleshooting Marijuana Health Problems
Ten Biggest Mistakes Marijuana Growers Make

What Type Of Lamp To Use

General Information

Basics to Marijuana Planting
Basic Marijuana Information
How To Build A Marijuana Grow Box
Marijuana Growing Tips

Preparing to Grow Marijuana
Marijuana Seeds Germination
Sexing Marijuana Plants
Cannabis Life Cycle
Marijuana Potency
How To Grow Marijuana and Why

Indoor and Outdoor Garden Security
Guide To Growing Marijuana
Closet Marijuana Growing Guide
Complete Marijuana Closet Set Up

Pot Seeds
Growing Pot
Marijuana Grower's Guide
Gorilla Growers Guide
Dutch Grow Room Visuals
How to Grow Marijuana
Topping, Pruning and Bending Cannabis
Curing and Trimming
Breeding Marijuana

Specific Information

History of Cannabis
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Germinating Marijuana
Choosing Marijuana Seeds
Rockwool The Book
Kale Marijuana Growing Guide
Cannabis Growing Guide

Advanced Growing Marijuana Guide
The Home Marijuana Creator
Marijuana Definitions for Growers
Marijuana Botany
Tips Growing Weed
When To Harvest Marijuana
Increasing Marijuana Yield
Lighting Types and Intensities
Grow Light Guide

PH and EC Meters
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Marijuana THC
Transport and Logistics of the Marijuana Plant

Growing Haze Marijuana
Tips on Growing Good Marijuana Plants