What is the best size for Grow With LED lights?

The size of your grow space will dictate the size and number of an LED units you purchase. A good rule-of-thumb for LED grow lights is 32 watts of actual wattage per square foot of growing space for flowering medical or other large flowering plants.

Table of Contents show

What size LED grow light do I need?

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 do I choose the right grow light?

Good full-spectrum lights for indoor gardening have a CRI rating above 85, but the closer to 100, the better. Be sure to buy enough fixtures to evenly distribute the light over the entire area. For seedlings along the perimeter to thrive, they should receive the same amount of light as those in the center.

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

Grow Room SizeSquare FeetRecommended # of Plants in Veg
6′ x 6′36Up to 36
4′ x 8′32Up to 32
8′ x 8′64Up to 64
10′ x 10′100Up to 100

What size grow tent for 1000 watt LED?

4′ x 4′ Grow Tent – Perfect for the footprint of a 1000w HID or LED grow light (4-6 plants)

How much light do I need for a 4X4 grow room?

You can scale up the wattage with respect to your grow space. Just remember that one square foot of grow tent space needs roughly thirty-two watts of real wattage. According to research, a 4 x 4 requires around 512 watts, but the wattage can range from 500 to 650 watts.

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

These lights range in power from 100 to 1000 watts. The 400 and 1000 watt lights are the most useful. 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.

How many plants can I grow in a 4X4 grow tent?

Most growers prefer something in between these two extremes with around nine plants in a 4X4 grow space. This will give you about one square foot per each plant. Auto-flower plants will always be the same size as they do not have a veg period.

How many plants can I grow under 300W LED?

1-6 plants 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.…

What size light for 2×2 grow tent?

You have the option to choose a 3000k or 4000k. The 3000k is great for flowering, while the 4000k is ideal for veg. The light has 95 watts of power, making it possible to replace a 300W CFL or 220W T5. In addition, this LED grow light has a passive cooling design and gives enough coverage for a 2′ x 2′ grow tent.

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.

How many watts LED for 2×4 grow tent?

# of PlantsSquare FeetWattage from Wall
24120 to 140 watts
48240 to 300 watts
612360 to 400 watts
816500 to 650 watts

How much can a 4×4 grow tent yield?

Actually, the yield from a 4×4 grow tent can be anything between 1lb to 2lb(16-30oz). But a number of deciding factors are there. Such as the growing style(SoG, ScrOG, Flux, Bush), the height limit, the number of plants, the environment, and so on.

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

A 1000 watt Led grow light, running 18 hours a day over a 30-day period at a cost of 14.21 cents per kWh will set you back $76,24.

How many watts of light do I need per square foot?

An average LED lighting system draws about 32 watts to serve 1 square foot of grow space. The wattage in a grow room could be amplified up to a maximum of 50 watts per square foot. Going beyond that amount would create a too strong indoor plant light intensity, which could stunt the growth of your plants.

Should I dim my LED grow lights for seedlings?

When it comes to whether or not you should dim your grow lights, the answer should be “no.” Your grow lights are not like your typical household lights. Your plants depend on indoor grow lamps to be operating at 100 percent in order to get the full benefit of your bulb’s light spectrum.

What watt grow light for seedlings?

Seedlings need approximately 32 watts per square foot of growing area for LED grow lights and 100 watts per plant for CFLs. They also require the right color temperature to grow and thrive, so choose a temperature range of 3,500 to 6,500 kelvins.

How many lumens do I need per square foot?

As a handy rule of thumb, a sitting room or bedroom will generally require around 10-20 lumens per square foot, while a bathroom or kitchen will need a stronger level of lighting, at around 70-80 lumens per square foot.

What is the best light for Autoflower?

The best light spectrum for autos and photos is a full-spectrum. That’s why it’s essential to choose your cannabis light spectrum carefully, we recommend using a mixed light spectrum of warm and cold light bulbs (CMH and HPS) or a full-spectrum LED during the whole lifecycle of your autoflower.

How many plants can I grow with 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 big should my plants be after 2 weeks?

How Big Should My Weed Plants be After 2 Weeks? In most cases your plant should be around 2 to 3 inches tall with 2 to 3 sets of leaves including the cotyledons (seed leaves which are rounded).

How much power does a 600w LED light use?

The average daily energy consumption of a 600 watt LED grow light = 0.6 kWh x 16 = 9.6 kWh.

How far should a 600 watt light be from plants?

How close can I put my 400w or 600w HPS system to my plants? Taking all of the above into account you should place your HPS system between 12 & 18 inches away from your plant, this is the ideal position.

What size LED light for 4×8 grow tent?

During the VEGETATION STAGE – 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.

How much does a 1000 watt LED yield?

The yield from a single 1000w lamp is about 2 lbs per harvest.

How far away should LED grow lights be from seedlings?

Overheating or insufficient lighting can result from having too many or not enough lights, but it can also result from placing the lights too close or too far from the plants. There is no universal rule for setting the distance but it’s recommended that LEDs are placed 12 to 18 inches away from the plants.

How many watts do I need for house plants?

As a rule of thumb, aim for 20 to 40 watts per square foot. Divide the wattage of your bulb by 20 (such as 400 watts divided by 20 = 20), and then divide the wattage of your bulb by 40 (400 divided by 40 = 10).

Is LED better than HPS?

Essentially, we’re talking about different technologies and calling them both “HPS.” LEDs are much the same. Though they’re generally more efficient than HPS (with some clocking 2.8 µmol/joule), some LEDs are less efficient than high-quality HPS fixtures, and they give you less light.

How far should 300w LED be from plants?

For seedlings, LED grow lights should generally be mounted between 24-36 inches above the plant canopy – however, this depends on the power (wattage) of the light source.

How many grow lights per shelf?

Two of these units placed side by side are the perfect size to hang two 4-foot shop lights across each shelf. The shelves are 13-inches deep and two standard seedling trays fit perfectly on each shelf. Plus there is room for two lamp fixtures on each shelf if more light is needed.

How close can a 1000 watt plant be?

The stronger the light, the further you’ll need to hang it, so if you have a 1000w you may want to hang it at least 15″ (38cm) away. Depending on the strength of your light, you won’t want to go higher than 30 inches (76cm) above your plants.

How much heat do LED grow lights give off?

As stated earlier, this is true regardless of what kind of light it is – LED, HPS, MH, or any other. Therefore, a 1,000W HPS grow light (1,060W with ballast loss) generates 3,617 BTU per hour heat. A 500W LED grow light (550W with driver loss) generates approximately 1,877 BTU per hour heat.

How many plants can you fit under a grow light?

The short answer is that for one grow light, you should plan on growing 1-8 plants. If you grow more than 8 plants under a single grow light, chances are you’re hurting your yields by not giving each plant enough space to thrive.

How much grow light do plants need?

‘ plants do require a daily respiration period of at least 6 hours per day (for seedlings) and ideally 8-10 hours for more mature plants. Therefore we do not recommend providing more than 14-16 hours per day of light, even if you are growing long-day-loving varieties and trying to induce flowering/fruit from them.

How many grow lights do I need for seedlings?

Once sprouted, most vegetable seedlings and other garden plants require at least 12 hours of good light per day, along with 8 hours of darkness. However, they’ll grow the best with around 16 to 18 hours of light. Houseplants are happy with less, where 6 to 12 of light is sufficient (depending on the type of plant).

How many watts does an Autoflower need?

Usually, you would need around 75 W per plant, so by following the table we can calculate how many watts we would need for 30 plants in a 6 square meter (64.5 ft2) space.

How much does it cost to run a 1000 watt light?

1000 watt Sodium1000 watt Halide
Ballast Wattage11001080
Cost per Month$52.80$51.84
Initial Lumens130000110000
Mean Lumens12600088000


SuperCloset – The World’s Best Fully-Automated Grow Cabinets

Milwaukee Dual Rocket Light, Their Best Keep Secret?

How to build a cardboard box grow Perfect Sun MINI LED

Other Articles

What vegetables can be planted this month?

Is Worx owned by Black and Decker?

Do dwarf avocado trees bear fruit?

What is the difference between indoor and outdoor plant pots?

What is the best tool for pulling weeds?