The smallest number of watts needed to grow cannabis in a 3×3 foot grow tent is 40 watts per plant, although the best grow lights use at least 200 watts for the whole tent.

## What size LED light do I need for my grow tent?

Standard advice says you should aim for 32-50 watts per square foot of grow space. More like 25 watts if your grow space is a dedicated veg tent. So if you were working with a 3′ x 3′ space, you’d theoretically want an LED light with a power draw somewhere between 225 watts (vegetative) and 450 watts (flowering).

## How many plants can you fit in a 3×3 grow tent?

If you’re using a 3×3 grow tent for flowering I would put two plants in 3 gallon pots the most . With a 9 sq ft canopy, if you drop in a 600hps or a 320w cob or quantum you could get like 12-16oz from 4 plants.

## How much area does a 600 watt LED grow light cover?

The wattage of the light will determine how much area you can light up. If we assume that the plants will get no sunlight, a 1000 watt light will cover about 7×7 feet of growing area. A 600 watt will cover 6×6 feet, a 400 will cover 4×4 feet, a 250 will cover 3×3 feet and a 150 will cover 2×2 feet.

## How much can you yield in a 3×3?

A simple horizontal SCRoG can easily fetch you 10-12 ounces (assuming all environmental factors are dialed,the strain is dialed,everything dialed) and even a pound,all in a 3×3 tent.

## What size LED light for 5×5 grow tent?

King Plus 1000w Full Spectrum LED Grow Light

Another 1000W LED Grow Light setup worth giving a try is from King Plus. This LED grow light fixture covers up to 3.8 feet. This is ideal for a 5×5 grow tent that is not filled with more than 10 plants.

## What size LED light for 4×8 grow tent?

To produce a favorable yield in flowering period, you need a LED light with an output of at least 50W per square foot of growing space. Now your 4×8 grow tent is 4ft long and 8ft wide. Which gives you a square foot grow space of (4ft x 8ft) = 32. And then, multiply this figure by 50W: (32 x 50)W = 1600 W.

## How big of a grow tent do I need for 4 plants?

For 4 plants, a rectangular tent shape is best and the most common size is a 4×4. That gives each plant about 4 square feet of growing space (a 2×2 area). It is actually a bit less than that, because you want to keep some space free between the plants. But this still allows for good sized plants.

## How many plants can I grow under a 600w LED light?

2 month plants should give about 40g per plant, so with about 9 you’ll be able to easily fill a square meter and get up to 400g per 600w light. 3 month autoflowering plants grow much bigger, however, so you should only plant 4 per 600w light.

## What size carbon filter for 3×3 grow tent?

6″ is way over kill for 3×3. You want to clear your air every 2 minutes.

## What is the best wattage for LED grow lights?

As a rule, you want 20 to 40 watts per square foot. Divide the wattage of your bulb by 20 (such as 1,000 divided 20 = 50), then divide the wattage of your bulb by 40 (1,000 divided by 40 = 25). The answer gives you the extremes of your light intensity range.

## Can you have too much light in a grow tent?

Although too much light can impede plant growth, it’s also a fairly easy problem to fix. … Experts recommend 100 watts of light for a 2 foot by 2 foot grow area, up to 1,000 watts for an 8 foot by 8 foot area.

## How much does it cost to run a 600 watt LED grow light?

Multiply $0.0195374 by the number of hours you plan to run the lights (14 hours). The cost to run the lights per day is $0.2735236 or $8.20 per month. If I have an HID (high intensity discharge) light with a 600 watt bulb in it, using the same method of calculation, it would cost me $30.90 per month.

## Does longer veg time increase yield?

The longer you keep your plants in the vegetative stage, the bigger your plant will be, resulting in bigger yields from plants that were vegetated longer. … I usually recommend a week of veg time for every gallon of growing medium (ie: a plant grown in a 5-gallon bucket should get about a 5 week veg).

## How hot is too hot in grow tent?

Managing grow tent heat is one of the more difficult, frustrating aspects of indoor growing. Not too hot and not too cold; many of the plants we grow are just like us and prefer similar temperatures – between 65 to 85 degrees Fahrenheit.

## How many plants can I grow with a 600 watt HPS?

Sixteen plants that are grown under a 600-watt HPS lamp could produce about 37.5 grams or 1.3 oz of marijuana per plant. Under perfect, outdoor conditions, you can expect yields to extend to 500 grams or 17.5 oz per plant.