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).
Also know, how many grow lights do you need for 4 plants?
Recommended assuming 4.0 sq ft/plant
| # of Plants | Square Feet | Wattage from Wall |
|---|---|---|
| 1 | 4 | 120 to 140 watts |
| 2 | 8 | 240 to 300 watts |
| 4 | 16 | 500 to 650 watts |
| 6 | 24 | 700 to 860 watts |
Thereof, how far apart should grow lights be from each other?
Spacing your lights 4′ apart will usually be a good benchmark to shoot for, but variances in wattage, size, and footprint will dictate what works best for you.
What size LED grow light for 2×2 grow tent?
The SolarXtreme 250 cannabis LED light draws 200 watts of power and is suitable for spaces up to 9 square feet. So a 2′ x 2′ tent or a 3′ x 3′ tent is a great fit with this light. Given its full spectrum capacity, it’s a light you can use for vegetation through flowering.
How many plants can one light grow?
There are two groups of autos; 2 month, and 3 month plants. 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 far should LED grow lights be from plants?
How strong of a grow light do I need?
How Much Light Do You Need? Once you’ve decided which kind of plant grow light you want, it’s time to decide how big a bulb you need for the space you have. First, determine how much space you need to illuminate. As a rule of thumb, aim for 20 to 40 watts per square foot.
How much light do 2 plants need?
How to calculate grow light wattage requirements. Most flowering plants grow best with 20-30 watts of light per square foot. Don’t make the mistake of thinking more is better. Too much light can lead to bleaching and burning your plants.
Do LED grow lights work?
LED grow lights work well because they’re designed to imitate the sun. They give out minimal heat but provide both red & blue light that plants require. … In addition, grow lights emit very specific wavelengths of light, which is critical for plant growth.
Should I dim my LED grow lights?
Dimming the lights is necessary when your plants are stressed or during application of foliar and pesticides. If you choose to include dimming control in your LED grow lights, you can make sure that you are providing the right amount of light in every stage.
Can LED grow lights burn plants?
The reality is that modern LED grow lights can produce a very high level of light and it can cause photo-bleaching and burn leaves. This depends very much on the plant, but a PPFD of 800 is enough to damage some plants.
