How many LED grow lights do I need?

Grow Space Wattage
12 sq ft (3×4) ~400
16 sq ft (4×4) ~500
20 sq ft (4×5) ~640
25 sq ft (5×5) ~800

How many LED lights do I need for my grow room?

For example, 300 x 3-watt diodes would be a 900 watt LED grow light. However, the LED grow light might only draw 500 watts at the wall.

Recommended assuming 4.0 sq ft/plant.

# of Plants Square Feet Wattage from Wall
2 8 240 to 300 watts
4 16 500 to 650 watts
6 24 700 to 860 watts
8 32 900 to 1100 watts

How much area does a 1000 watt LED grow light cover?

A 1000 watt grow light can light up an area of about 7 feet square when the light is suspended 2 feet above the plants. A 400 watt light would work for an area of about 4 feet square.

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How many plants can I grow with a 300W LED light?

So 300W can coverage about 2*3ft area, in general, each cannabis plant you grow requires at least 1sq ft of space. So under 300W, you can grow about 1-6 plants.

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

The answer is yes, and there is economic and scientific evidence to back it up. First, we need to consider what is cost-effective and ecological. Many grow rooms are set up with a lot of grow lights and ballasts that need to be purchased up-front. Additionally, all this equipment will need to be replaced over time.

How many LED grow lights for a 10×10 room?

the general rule of thumb is 25-50 watts of light per square foot, you have 100 sf, so you need 2500-5000 watts of light. Check out the led forums here, they seem to be the way to go, especially if heat is an issue.

What size LED light for 3×3 grow tent?

You should shoot for 350 watts in a 3×3 tent. I would avoid amazon led lights. They are low priced and low quality, or in some cases high priced and low quality. 700 is going to be tough if you are looking for a light ready to go.

How many plants can a 1000 watt LED grow?

How Many Plants Can I Grow?

Grow Space Size Minimum Number of Watts Required Number of Plants You Can Grow
9 sq ft (3×3) 450w 1-9 plants*
12 sq ft (3×4) 600w 1-12 plants*
16 sq ft (4×4) 800w 1-16 plants*
20 sq ft (4×5) 1000w 1-20 plants*
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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.

How much does it cost to run a 1000w LED light?

You need to divide your wattage by 1,000 (1,000 kilowats in 1 watt). So, if we were to run a 1000 watt grow light 18 hours a day with the kWh rate we gave earlier, our formula would be: 1 x $0.1559 x 18 x 30 = $84.186/month.

What size LED light for 4×8 grow tent?

This implies in future vegetation period, your 4 x 8 grow tent will require an LED grow light bulb size of at least 800W, or you may combine multiple LED lights which will total to 800W.

Are COB lights better than LED?

But the difference between LED light COB and SMD is that COB LEDs have more diodes. COB chips typically have 9 or more diodes. … Another aspect of the COB vs SMD LED Lights difference is in the use of energy. COB is known for better lumen-per-watt ratios and heat efficiency.

What is a 300 watt LED grow light equivalent to?

Meizhi 300 LED Horticultural Light

Meizhi is a Chinese brand, so obviously the 300w label is pretty ridiculous. That is something Chinese brands always do. In actuality, this light is equivalent to 200 watts of HID power and uses somewhere around 130 watts.

How do you know if your plant is getting too much light?

If your plant is not getting enough light, the most common sign is the yellowing and dropping of leaves, stunted leaf growth, elongated stems, and a dull-green color. If your plant is getting too much light, then its leaves will have singed tips, burned patches, or will be falling off (yikes!).

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What size LED light for 5×5 grow tent?

For a 5×5 tent, it’s best to use about 1000 watts (High-Pressure Sodium) lights. HPS lights appear to be yellow in color, but these have the color spectrums yellow and red. Both spectrums are great for flowering plants. However, this doesn’t mean that HPS can only be used for flowering plants.

Can LED grow lights burn plants?

LED lights tend to produce less heat than older technology, and their light intensity is relatively low. This has lead to the conclusion that you can put plants as close to the lights as you want and you won’t burn them. … This depends very much on the plant, but a PPFD of 800 is enough to damage some plants.

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