Quick Answer: How far away should my LED lights be from plants?

Can LED lights be too close to plants?

In short, LED lights are the go-to type of light used by gardeners. Since LED lights produce far less heat compared to other types of lights, plants can tolerate LED lights being much closer. A general rule is that LED lights should be about 12-30 inches from the top of your plant.

How long should LED lights be on plants?

To be effective, grow lights really need to be on for at least 8-10 hours a day. This can vary up to 16 hours, depending on the conditions. That’s why LED grow lights are so popular – when they have to be left on all day, it’s best to use an energy efficient type!

How high above plants should grow lights be?

As a rough guide, incandescent grow light bulbs should be at least 24 inches over your plants. Fluorescent and LED lights have a lower heat signature, so they can be placed 12 and 6 inches over plants respectively.

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.

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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.

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!).

Should I turn off the grow light at night?

A: In general, you should not leave grow lights on 24/7. Plants need a light-dark cycle to develop properly. It’s believed that they truly do “rest” during periods of darkness, and probably use this time to move nutrients into their extremities while taking a break from growing.

How many LED grow lights 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).

Is it safe to sit under a grow light?

The bottom line is that LED grow lights are no more dangerous than any other type of grow light. HPS is much more dangerous than LEDs – high heat and risk of burns, risk of broken bulbs and fires, high environmental damage due to mercury content, high carbon footprint.

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