How to Choose an LED Grow Light – Various Factors You Need To Know

In the presence of light, plants perform photosynthesis to generate food and energy. During this phenomenon, special cells convert inorganic resources such as light, carbon dioxide, water, and minerals into organic resources like sugars which plants can use to grow. Plants vary widely in how much light they need to thrive. Certain plants require less light for their optimum growth, while some plants require adequate lighting to have a steadfast bloom. Moreover, there are some other factors you should know before buying a suitable set of LED grow lights. These factors are mentioned below:

1. Extraordinary Built Quality for an Established Record of Success

The LED Grow lights should be of such high and supreme quality that they should last for at least 10 years. Generally, durability is a key factor that distinguishes LEDs from normal fluorescent bulbs which is the reason why people prefer LED grow lights over ordinary bulbs. Companies producing these products possess thousands of happy customers all around the globe, thus have established sound business in the market. Some of the brands we trust are: Black Dog LED, California LightWorks, ViparSpectra, and KIND LED.

2.  Find a Reputable LED Brand - Check Reviews

LED grow lights are becoming the most popular option by many, therefore, every brand in the market is making the effort to capitalize on this. However, many brands produce low quality and low-performance lights. Want a recommendation of a quality and affordable brand? ViparSpectra would be our answer. They offer a whole new series of LED grow lights which include Dimmable Series, PAR Series, Pro Series, Reflector-Series, Timer Control Series, and XS Series. These top-quality LED grow lights are all designed to meet the specific needs of the customers. Customers may order according to their requirements. It is quite obvious that a company with a rich history, extensive research, and a good reputation is likely to have a good product. Lastly, make sure you do you due diligence and check reviews before purchasing. 

3. Low Heat Output

LED grow lights of good quality have low heat output. On the contrary, ordinary filament bulbs let off more heat energy which may inflict great damage to plants and its growth cycle. Also, such bulbs tend to fade and burn out more quickly. Therefore, replacing these burnt-out bulbs with new ones can add up in the long run. So why is LED better? An LED light encompasses two main features; one is plant protection and the other is durability. LEDs ensure that plants don’t get damaged by heat even if the distance between the plant and the lamp is small. Besides, an LED grow light doesn’t burn out quickly making the maintenance cost minimalistic.

4. Low Electricity Consumption

It’s quite obvious that to grow plants, you’ll have to keep the lights on for half of the day i.e. 12 hours approximately. If your set-up contains normal incandescent and fluorescent bulbs, electricity bills will skyrocket. Therefore, to lower the consumption of electricity units, the best option is to use LED Grow lights. They’ll drastically reduce your electricity consumption, thus bring a significant decline in the cost of electricity bills.  Besides, LEDs will produce the same energy compared to the other lights at only half the energy consumption. Lower electricity bill and more energy output? Don't miss out on the benefits of LED. 

5. Superior Quality Semiconducting Chip

The semiconductor chip is the heart of an LED grow light. Its purpose is the same as how the brain operates the human body. Usually, this chip is positioned on top of the cathode lead. Applying several volts across the LED Grow Light makes the chip emit light. This chip should be of at least 3 watts. Otherwise, the chip won’t be able to emit sufficient glow.

6. Select an LED According to Your Requirement

Opt for an LED grow light according to the plants or crops you’re growing. Different plants require different wavelengths of light. Moreover, different stages of the growing cycle of a plant require different wavelengths too. This means that during the vegetative stage and flowering/blooming stage, a different wavelength of light is needed. For example, in tomatoes Blue Light (450-nm wavelength) is good for starting seeds. Once seeds have sprouted, both red and blue light (650-nm wavelengths) are essential for photosynthesis. On the flip side, there are two intense absorption bands of fresh lettuce leaf in the range of 400-800 nm wavelengths mainly for chlorophyll and carotene absorption. The 437-nm bands belong to Blue Light for developing the chloroplast, while the 678 nm bands attribute to red light for promoting photosynthesis.

7. Space for Growing Plants

hydroponics garden

If you are well aware of your plant growing space, you can easily determine the amount and the size of LED grow lights you’ll need. First, measure the exact dimension of your garden. Then determine the lighting area size to figure out how many LED grow lights are required to maximize growth. The most accurate metrics for a good estimate of LED lights is DLI (Daily Light Integral) or PPFD (Photosynthetic Photon Flux Density). But for simplicity, we use Wattage (Watts) to determine the estimated light coverage area. 32 watts per square feet is usually needed when you’re growing high light-demanding plants like tomatoes. But if you’re growing plants like lettuce which require less light, you’ll need 11-18 watts per square feet.

The following table shows the wattage that is required for a particular grow-area:


Wattage (Watts)












8. Full Spectrum LED Grow Lights

Standard fluorescent bulbs provide light in the blue spectrum while the incandescent lights primarily provide red spectrum lights. But if you desire to provide a light which has quality equivalent to sunlight, Full-Spectrum LED grow lights are the best option. These lights are gaining popularity in the horticultural society by leaps and bounds. It’s the best product if you require optimum growth of the plant at every stage of the growth cycle, whether it’s the vegetative stage or flowering/blooming stage. Proper development of a crop not only requires red and blue spectrum lights (in the visible region) but also requires shorter wavelength Ultra-Violet (UV) radiations and longer wavelength Infra-Red (IR) radiations. We offer a large selection of LED grow lights. We believe LED grow lights will help your plants thrive and exceed beyond expectations. Shop our LED collection here.

9. Flexible and Easy-to-Use

Good quality LED grow lights are very user-friendly. They can be placed and installed very easily. Premium quality LED grow lights have customizable intensity and wavelength. The height of the light can also be adjusted according to the requirement.

10. Warranty and Return Policy

If an LED grow light lasts less than 5 years, it’s surely of low quality. Reputable LED grow light manufacturers provide a warranty that covers at least 3-5 years. Check the warranty the manufacturers offer before purchasing a grow light.


In a nutshell, if you desire to have a well-established horticultural set-up, you should shift towards advanced LED grow lights. You’ll not only have a better yield, but the growth will amaze you. If you are looking for affordable and superior quality LED grow lights, go with ViparSpectra

ViparSpectra Grow light

However, if you want a premium LED brand that will outperform other brands, KIND LED is your brand. KIND LED runs quieter, cooler, and more efficiently than any other grow light. GUARANTEED! Shop our KIND LED collection here.

KIND LED grow light
Grow lights

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