Marijuana Grow Lights

Grow Lights: What are they and how are they used for growing cannabis?
Indoor marijuana grow lights growing marijuana are used when setting up your cannabis grow room. Depending on what stage of growth your plants are in will determine what color light (spectrum) should be used. The Grow Lights Color rating is Measured in Kelvin (K). The higher the number, the more bluish the light. 4000K-7000K is mostly on the blue side of the spectrum, while 3000K and under goes from a white spectrum, to a redder spectrum.

Vegetative Stage Marijuana Grow Lights

During Vegetative Growth your plants need a minimum of 18 hours a day of Light. The best Grow Lights for Vegetative Growth are 400 Watt Metal Halide Agrosun Blue Grow Lights. Metal halide grow lights are optimal for use in the vegetative phase of growing. They emit mostly blue light, which encourages vigorous growth of foliage. They are very efficient, but can get rather expensive to start with; Hydrofarm FLT24 2-Feet Four Tube T5 Fluorescent Light System may seem more appealing because of their lower price, and they are not much different when compared on a lumen-to-lumen cost level. These lights can be used through-out the grow, but will most likely result in light, fluffy buds. I recommend using fluorescents for seedlings and clones, while using Metal Halides for moms and vegetative growth. I prefer to use Hortilux Eye Blue Metal Halides as they have always worked perfect for me.

High Pressure Sodium Cannabis Grow Lights

marijuana grow light for blooming
1000w high pressure sodium (hps) light used for blooming

High Pressure Sodium Grow Lights (HPS) are by far the best lights available for budding marijuana plants. High pressure sodium lights emit mostly orange, yellow, and red spectrum light, which is perfect for the flowering stage of the plants growth. They are (in my opinion) the most efficient type of light available for any application. HPS Grow lights can be used through-out the entire cannabis grow. They produce more dense and usually larger buds than any other light. HPS Grow lights are generally a little more expensive than MH (metal Halide) systems of similar wattage. They are more commonly used by experienced growers because of their ability to produce tighter buds, higher lumen-output-per-watt, and will produce from start to finish. I prefer the Hortilux HX66785 1000-Watt Super HPS Spectrum Grow Bulb
as my Grow Lights for Blooming. Please check our Lighting Section for detailed information and specs on all Cannabis Grow Lights.

hood reflector marijuana grow light
1000w high pressure sodium (hps) bulb and hood reflector

Grow Lights for Growing Weed

Flowering Light Cycle

Flowering Light Cycle for Marijuana

The Flowering Light Cycle is the cycle you set your High Pressure Sodium Lights on to bud your marijuana plants.
Indoor marijuana

Indoor Marijuana Grow Lights

Indoor marijuana growing requires the use of Grow Lights designed specifically for indoor plant growth to replicate the lighting that
Clone Machine

How to Build a Clone Machine: Video

Build a Clone Machine step-by-step how-to instructions. Building your own clone machine for marijuana plant clones can save you money
grow lights

Vegetative Light Cycle

Growing marijuana indoors, you need to know the best schedule to set your timer for the Vegetative Light Cycle to
Grow Lights Tips and Secrets

Grow Lights Tips and Secrets

Indoor Marijuana Grow Lights Tips and Secrets that will help you with growing your cannabis, as well will help keep
Metal Halide (MH) Grow Lights.

Metal Halide (MH) Grow Lights.

Metal Halide lights are used during the vegetative growth stage of cannabis plants that are grown for medical marijuana. Metal
HPS Lights

High Pressure Sodium HPS Lights

High Pressure Sodium HPS lights are used for blooming stage (budding) of cannabis plants to produce marijuana buds. These high
fluorescent grow lights clone

Fluorescent Grow Lights

Fluorescent lights are commonly used for growing indoor marijuana, specifically for clones, cuttings and seedlings. I know some people to