In this guide we’ll look at the best LED grow lights for the UK market.
We’ve compared design, brightness, effectiveness and cost
to give you my top recommendations.
What Are The Best LED Grow Lights?
In a rush? Here’s my top choice…
Cost effective to run, provides excellent growing conditions!
This VIPARSPECTRA V450 450W Reflector LED Grow Light will keep your plants growing steadily! The LEDs are super bright and will maintain a good temperature even after continuous use.
Things to Know Before Buying LED Grow Lights
LED grow lights are a fantastic way to get the right light to your plants when growing in a greenhouse.
They are low heat, so won’t burn your plants, whilst being very cost effective to run.
Of course you’ll want to get the best LED grow lights for your specific set up, so the following information should help you make an informed decision:
Wattage is a key consideration when choosing the appropriate LED grow light. Plants need a lot of light to grow, but too much light can result in browning or yellowing leaves.
The amount of watts you need will depend on the plants you are growing. Fruiting plants like tomatoes may need up to 32 W of light per square foot of growing area. In contrast, leafy plants such as salad leaves will only need 10 to 20 W per square foot of growing area.
You will need to measure the growing area to ensure that the light you choose provides enough to cover the whole area evenly.
Most LED grow lights specify the coverage at certain heights in their description. Therefore, you should also consider where you’ll be hanging your light before you buy one. You may have a limit on the maximum hanging height that you have available.
The size grow light you need will depend on the type of plants you are growing as some require more light than others. However, the following is a guide to the wattage you might need to cover your growing area:
An area of 60 x 60 cm will require 50 – 200 W depending on the type of plants
An area of 80 x 80 cm will require 200 – 400 W depending on the type of plants
An area of 100 x 100 cm will require 400 – 800 W depending on the type of plants
The best LED grow lights can help you start off plants much earlier in the season leading to bumper crops of tomatoes and chillies. In addition, grow lights can support your house plants including orchids and succulents through the winter months so your home always has a tropical vibe.
LED lights cost less to run than traditional High-Intensity Discharge (HID) lights. In addition, LED lights produce less heat so you will not need to use as much energy cooling as you would with HID.
A lot of lights have an energy efficiency rating, so you can see how they stack up. For example, the KINGBO 1000W Double Chips LED Grow Light has an energy rating of A+++.
Until recently, LED grow lights usually provided red, blue, and white light.
However, modern grow lights are ‘full spectrum’. This means they provide all the colours in the light spectrum.
Full spectrum lights are the most similar to natural sunlight and can, therefore, support your plants well through all stages of the growth cycle; from seed to fruiting/flowering.
LED lights can be placed much closer to plants than HID light because they give off less heat. This is a great advantage as it means the lights can be placed closer to the plants and therefore the light can penetrate the canopy of the plants more easily. In addition, it means you don’t need such a tall growing space.
Positioning the LED light the correct distance from your plant wills result in strong healthy crops with no burning or yellowing leaves. When your light is placed too close to the plants you may see bleached or yellow spots on the leaves.
If the LED is too close it can also result in nutrient deficiencies for your plants.
However, it is not always easy to calculate how far away your LED light should be – it’s something that differs depending on the size and wattage of your lights. It’s best to check the directions that come with your grow light and follow their recommended distances.
However, in general, you should aim for the following distances:
- 200 W – 30 to 51 cm away from plants
- 250- 400 W – 41 to 76 cm away from plants
- 450- 550 W – 51 to 76 cm away from plants
- 600- 800 W – 71 to 107 cm away from plants
Everything We Recommend
More Detailed LED Grow Light Reviews
VIPARSPECTRA V450 450W Reflector LED Grow Light Review
The VIPARSPECTRA Reflector-Series V450 450W LED Grow Light is a completely adjustable, super quiet, cool-running grow light.
This 12-band full spectrum light has every possible setting you might need for growing and blooming. Plus, it’s dimmable so you can adapt it to your specific needs.
The light features 90 high-intensity 5 W Bridgelux/Epileds LEDs. At a height of 60 cm it offers a vegetative coverage of 75 x 75 cm. At 46 cm it provides a flowering coverage of 60 x 60 cm.
This fantastic LED grow light has been scientifically engineered to keep the balance of the PAR output and coverage. It provides the plants with everything they would desire from natural sunlight at every different stage of the growing process. Of course, it’s a much more reliable source of ‘sunlight’ than the actual sun in the UK!
You won’t overheat your plants as they grow thanks to some well-designed features of this light. Its advanced high-speed quiet fans and upgraded aluminium cooling sinks keep temperatures down.
The light is so simple to use and comes with full instructions. It features a 6 ft power cord with a UK plug as well as a hanging kit, so it’s easy to position and attach.
Overall, this is a brilliant option for the keen grower. Your plants will be singing your praises as they thrive under the light of these LEDs!
KINGBO Dual Optical Lens 300W LED Grow Light Review
The KINGBO Dual Optical Lens-Series 300W LED Grow Light is another of the best LED grow lights available on the UK market. It’s also great value for money.
Its dual-optical lens maximises light and PAR / Lumen output, whilst reducing light loss, ensuring plants grow faster and stronger. As a result, it’s efficient to run – you aren’t paying to power light which is wasted and isn’t benefitting your plants.
This 12-band light features full-spectrum UV and IR, providing all plants, veg and flowers with everything they need to maximise harvest. You’ll notice that plants grow better, are healthier, and -produce a nicer-tasting crop.
It’s equivalent to 400 W HPS/MH, while consuming only 120 W!
A nice feature of this light is that it comes with different settings to adjust for different stages of plant life. You can change settings accordingly for seedlings, young growth and blooming.
When positioned at a height of 61 cm, the light provides coverage of 75 x 75 cm. It has a maximum coverage potential of 95 x 95 cm. The unit is well built and easy to use, plus comes with full instructions to make set up simple. It is also quiet and cool when running.
This is a fantastic grow lamp that offers great value for money. It’s effective and super simple to use.
If you’re looking for the best LED grow light, and also excellent bang for your buck, this is a really good option to go for.
Phlizon 600W LED Plant Grow Light Review
The Phlizon 600W LED Plant Grow Light is another excellent value light that offers a full spectrum of light whilst being cool and efficient.
This light provides universal blue, red, IR, UV and white light, providing everything your plant needs. It features 60 x 10 W LED lights.
When positioned at a height of 60 cm, it provides a growing area of 61 x 61 cm. The light can also be switched from ‘veg’ to ‘bloom’ mode to provide the optimum light for different stages of growth.
The unit uses double cooling fans to keep the area cool so that neither the fan nor your plants get too hot.
If you’re a keen grower looking for a neat, cool grow light that offers fantastic value for money, this is an excellent option! Your tomatoes and chillies will thank you for it!
KINGBO 1000W Double Chips LED Grow Light Review
The KINGBO 1000W Double Chips LED Grow Light is one of best LED grow lights on the market.
This grow light has a full spectrum of LED light which will help create the perfect growing environment for your plants. The spectrum of red/ blue/ white/ orange/ yellow/UV/IR light provides plants, vegetables and flowers all the light they need at every stage of the growing process.
The high-power double-chip design provides 1000 W of super bright LED light. As a result, it’s the perfect LED light for growing hydroponics and other indoor plants in your greenhouse. The strength provided by the double-chip design ensures maximum growth.
This grow light will maintain a good temperature even after 24 hours of continuous use. It won’t overheat thanks to the upgraded 0603 aluminum cooling sink, and it also has a high-speed whisper-quiet fan to keep it working steadily.
The Kingbo 1000 W LED light is extremely efficient and energy saving. You get the equivalent of 1000 W HPS/MH with only 300 W consumed.
The light is perfect for a 1.2 x 1.07 m growing area at a height of 60 cm height. The maximum coverage it can achieve is 1.4 x 1.2 m.
It’s easy to set up and use, and will keep running costs low. It comes with a rope hanger daisy chain to make it easy to attach and start using straight away.
If you’re looking for an LED grow light with super powerful double-chip LED lights that’s perfect for growing indoor hydroponics, the KINGBO 600W Double Chips LED Grow Light is the ultimate must have!
KINGBO New UFO LED Grow Light Review
This KINGBO New UFO LED Grow Light uses the most advanced CREE COB and Bridgelux / Epileds lights. So, not only does it produce great light, but it only consumes 62 W.
This light is simple to use, energy efficient and whisper quiet. It’s extremely effective at providing the light conditions your plants need to grow and prosper.
The unit is a low-cost solution to plants not getting sufficient sunlight and is a perfect introduction to grow lamps.
Overall, this light is powerful, effective and energy-efficient. Combined with the low cost this is a really good grow light to consider.
If you are exploring the world of grow lights for the first time, this is definitely a great option as it won’t break the bank but will let you see how effective using grow lamps can be.
LED Grow Lights FAQ
LED lights are much more energy efficient than fluorescent lights, incandescent lights and HID lights. They’re generally safer, cooler, and can be customised depending on your plants’ needs. Using a combination of different LED lights will get the best results.
Blue LEDs will help with photosynthesis – great for younger plants as well. Blue LEDs will especially benefit green leafy plants which don’t bloom.
Green LEDs are great for plants with dense growth – it can get through to the lower layers of foliage.
Red LEDs help encourage flowering and fruiting.
LED lights will contain some of the correct light waves for growing plants. However, for best results you should use LED lights which have been created purposefully for plants. Why? Well, they will have the correct balance of light colours for growing plants. If they’ve been intended for plants, they will also most likely have a cooling system in place to avoid overheating plants.