Guide to choose the LED Grow Lights

There’s many benefits of giving your plants the added energy received from grow lights. If you’ve never considered one, in this post I’ll explain a little about how grow lights work. I’ll explain why I think LED grow lights are the best choice.

How Do Grow Lights Work?

As we all know, plants need sunlight to grow. They use sunlight in a process called photosynthesis, which allows them to produce energy for growth. A plant’s growth is inhibited when a plant doesn’t get enough sunlight. A grow light can enable a plant to get enough light for maximum growth.

Grow lights give off specific lightwaves in the light spectrum that are needed for plant growth. But not all colours and wavelengths in the light spectrum are used by plants. Which is why grow lights are specifically designed to give your plant the light waves it needs! Meanwhile the plant won’t have to waste energy filtering out the wavelengths it doesn’t use.

Why Use a Grow Light?

There’s multiple reasons why your indoor plants could benefit from a grow light. Here’s a few of the common ones you may or may not have thought about…

House doesn’t have enough light:

Maybe your indoor plants aren’t growing? This could be the result of a lack of sunlight. While our homes may appear bright to our human eyes, there can still be a lack of light that a plant needs to be healthy! Generally all indoor plants should be placed within a couple of feet of a window to get the required light. If this isn’t possible, or if you’ve got your plants located elsewhere at home, they may benefit from an extra light source. Keep in mind that plants naturally live outdoors in high light levels, so we need to mimic their natural environment as much as possible to keep them healthy indoors.

Lack of light in Winter:

During winter, sunlight levels decrease for a few reasons. There’s the decreased hours of light in the day; less direct sun because of the angle of the earth; and less sun due to weather. Indoor plants may benefit from a boost in light over the winter months to help them get through the darker seasons. Grow lights can help keep your plants healthier if they struggle over winter. They may even help them to grow in the cooler seasons when they’d normally be dormant.

Tropical houseplants such as fiddle leaf figs, ficus varieties, prayer plants etc can especially benefit from the extra light provided by grow lights as these plants are naturally used to large amounts of light.

Your plants just aren’t growing:

If your indoor plants appear healthy but just don’t seem to be putting out any new growth, a lack of light may be the issue. Without enough energy from the sun, plants may not be able to sprout new growth, but still appearing healthy. Supplementing a grow light can help give indoor plants an energy boost.

New growth:

Grow lights are commonly used to grow seedlings or indoor herbs, and even fussy plants such as orchids. This way the light can be controlled and moderated. Herbs and fruits that normally have to be planted at a certain time of year can be grown anytime when using a grow light properly.

Why use LED Grow Lights?

Halogen lights still can give a full spectrum of light, but both halogen and incandescents give off a lot of heat. This can be a danger to burning your plants. LED lights give off almost no heat, making them a safer option.

To be effective, grow lights need to be on for 10-16 hours in the day, making LEDs a whole lot more efficient and energy saving than any other choice.

Fluorescent lights have a better energy consumption and less heat output when compared to halogens and incandescents. However they still don’t compare to the efficiency, low heat, lifespan and technology of LED grow lights.

Using the latest technology, LEDs can combine different wavelengths of the light spectrum to maximise particular growth in plants. That might be specifically for photosynthesis, growing seedlings or fruiting and flowering.

Can I use any light or LED Globe?

While normal household lights are designed to brighten our homes, grow lights are specifically designed with the lightwaves that plants need from the spectrum. Full spectrum grow lights are handy for general plant growth, while certain colour grow lights help in different stages of a plant’s growth. For example, seedlings benefit from blue light, while for fruiting and flowering, red light is best.

LED Grow lights also protect the plant from burning as the bulb stays cool. Regular bulbs will often get hot. LED grow lights maximise the light spectrums used by the plant and the plant doesn’t have to filter the other spectrums out.

How to Use your Grow Light

Any grow light you buy should come with specific directions on how to use. In general, grow lights should be placed above the plant (to mimic the sun). Plants generally lean and grow towards the light source, so positioning the light above the plant will stop any unusual growth.

As LED grow lights have a low heat output, they can be placed closer to your plants. The top of the plant should be around 6 inches away from the light source. If you have a large area, you may need to use multiple grow lights to fully cover the area.

Keep in mind that plants still need darkness to grow. While plants photosynthesise during the day, they need at least 8 hours of darkness to continue the process called respiration, where they break this energy down further. Aim to give your plants a rest by having at least 8 hours at night where the lights aren’t on.

BEST LED Grow Lights: 

The Best LED Grow Lights for your plant will partly depend on how you’d like your plants to use the light. Are you growing seeds, looking for flowers or just general growth? A full-spectrum grow light is best if you’re unsure or would just like an all-rounder grow light. They can be beneficial for all types of growth.

You also may want to opt for a full-spectrum white LED grow light if your grow light is going to be placed in a well-used area of your home. They’ll give you bright, white light, as opposed to blue or red grow lights that will give a coloured glow.

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