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 ?
More Detailed Reviews
The VIPARSPECTRA Reflector-Series V450 450W LED Grow Light is the best LED grow light for the UK market as it is adjustable, quiet, runs cool and uses only 200 watts.
This 12 band full spectrum light has different settings for growing and blooming and is dimmable so you can adapt it to your own needs. The light features 90 high intensity 5W Bridgelux/Epileds LEDs. The light offers vegetative coverage at 24″ of 75×75 cm and flowering coverage at 18″ of 60 x 60 cm.
The light is easy to use and comes with full instructions. It features a 6 ft power cord with a UK plug and a hanging kit. The light also has excellent heat dissipation so its stays cool.
Overall, this is great option for the keen gardener. Your chillies and tomatoes will love it!
The 1000W LED Grow Light Double Chips Full Spectrum Grow Lamp is a full spectrum 12 band light that provides plants and flowers with everything they need at all stages of growth.
The light features 100 x 10 watt super bright double chip LEDs. It also has an aluminium cooling heat sink, whisper quiet fans and is efficient, drawing only 200 watts. The light is fitted with a 1.8-metre power cord making it convenient to set up and use. The light has a max coverage at 0.6m height of 1.1 x 1.1m. This light comes with a 3-year warranty for added peace of mind.
Overall, this is a great growing lamp that offers everything your plant needs for abundant and healthy growth.
The KINGBO Dual Optical Lens-Series 300W LED Grow Light features full spectrum UV and IR and providing veg and flowers with everything they need to maximize harvest.
The light features a dual lens to increase light performance and this helps plants grow faster and stronger. The light has a switch to adjust from seeding and young growth to the blooming stage. The light provides coverage over 75 x 75 cm at 61 cm height and a maximum coverage of 95 x 95 cm. The unit is well built and easy to use and comes with full instructions and a 3-year warranty. It is also quiet and cool in use.
This is a well-priced grow lamp that is effective and easy to use making for the best LED grow lights in this price range.
The Phlizon 600W LED Plant Grow Light is another great value light that offers full spectrum light and is cool and efficient.
This light provides universal Blue Red IR UV and white light providing everything your plant needs. It features 60 x 10 watt LED lights. At 24” height, it provides a growing area of 2ft x 2ft (61 x 61 cm). The light can be switched from veg to bloom to provide the perfect light for different stages of growth. The unit uses double cooling fans to keep the area cool and includes a 2-year warranty.
This is a neat, cool grow light that offers good value for money.
This KINGBO New UFO LED Grow Light uses the most advanced CREE COB and Bridgelux / Epileds lights and consumes only 62 watts.
This light is simple to use, energy efficient and whisper quiet. The light is effective at providing the light conditions your plants need. The unit is a low-cost solution and a perfect introduction to grow lamps.
Overall, this light is powerful, effective and energy-efficient. Combined with the low cost this makes for the best LED lights if you are exploring the world of grow lights for the first time.
LED Grow Lights Buyer’s Guide
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 watts of light per square foot of growing area. In contrast, leafy plants such as salad leaves will only need 10 to 20 watts 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.
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.
Until recently, LED grow lights usually provided red, blue, and white light. However modern grow lights are full spectrum which 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 or flowering.
The best LED grow lights for the UK market come with a 2 or 3-year warranty that offers extra peace of mind.
How far should an LED grow light be from my plants?
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 this means the light can penetrate the canopy of the plants more easily. In addition, it means you don’t need such a tall growing space.
Getting your LED light the right distance from your plant will 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. As well as burning your plants, if the LED is too close it can result in nutrient deficiencies for your plants.
However, it is not always easy to calculate how far away your LED light should be as this 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 watts 12 to 20 inches
250- 400 watts 16 to 30 inches
450- 550 watts 20 to 30 inches
600- 800 watts 28 to 42 inches
What size led grow lights do I need?
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 watts depending on the type of plants
An area of 80 x 80 cm will require 200 – 400w depending on the type of plants
An area of 100 x 100 cm will require 400 – 800 watts 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.
I would recommend the VIPARSPECTRA Reflector-Series V450 450W LED Grow Light as it uses high-quality LEDs is quiet and cool and has both veg and bloom settings so will see your plants through the entire growth cycle.