There are tons of different grow lights to choose from for your indoor garden. If you have been looking around in the market, you might have stumbled with a special grow light called a purple grow light.
There are hundreds of purple grow lights on the market but what does this particular grow light bulb does and how does it differ from a full-spectrum grow light that the majority seems to be using in their indoor garden?
Those lights are purple because they emit a mix of blue light and red light that fuels photosynthesis and improves plant growth.
Although the popularity of white LED grow lights is on the rise, many indoor plant growers still prefer using purple LED grow lights.
In this article, we will be looking at the best purple LED grow lights that you can use to grow different plants indoors.
Purple LED grow lights
Here is our list of the top 8 purple LED grow lights in 2022 to start growing your indoor plants:
First on our list is Viparspectra grow lights. Unquestionably, Viparspectra Reflector Series LEDs are the most popular purple grow lights in the indoor plant gardening community. Most of the indoor plant growers we know used this brand because it is affordable and offers quality performance.
The Viparspectra Reflector Series have an overall purple spectrum that is slightly richer in blue light than red light.
You can modify the light spectrum of Viparspectra Reflector LEDs through their Veg and Bloom switches. This feature is helpful because it allows you to adjust the lighting of the grow light bulb according to what your plants need, and also allows you to save energy during the vegetative or seedling phase.
There are several different models in the Viparspectra Reflector Series. The best model for you is the one that can cover your indoor plant growing area.
These lights are really inexpensive, too!
Don’t forget to use the coupon code HERBSWITHIN to get an 8% discount on your grow light.
Kind LED is one of the best LED grow light in the market. This purple LED grow light has one of the most optimized light spectrums for plants.
It emits more red light than blue light, so it’s excellent for flowering plants or for your plants in the flowering phase. It also puts out small quantities of far-red and infrared light that can boost flower formation and yield.
The light spectrum of this grow light also includes small quantities of Ultraviolet UVA light that enhance nutrients and volatile levels.
Kind LED K3 XL300 also has secondary optical lenses that improve canopy penetration by more than 200%.
The light has a good light output and its coverage area is around 2′ x 2.5′ (0.6m x 0.75m).
Although some growers may find the Kind LED K3 XL300 a bit expensive. With its pricey price tag, we would recommend this grow light for professional growers who want to achieve the best results. If you are still new to indoor plant gardening or just trying it out, we suggest going for a cheaper brand.
Bestva DC series LEDs are a brilliant choice If you’re searching for a purple grow light with an optimized spectrum that is more affordable than Kind LED K3 Xl300.
The purple spectrum of those LEDs is equally rich in red light and blue light, but it also contains good quantities of green light.
Bestva DC grow lights also emit far-red and infrared light as well as UV light.
The lowest model in the series draws 185 watts of power only and can cover up to 4′ x 4′ (1.2m x 1.2m) growing area!
Bestva DC grow lights are far less expensive than Kind LED K3 lights.
- Likesuns Gooseneck LED Grow Light
If you are looking for a purple indoor plant grow light to illuminate your low-light houseplants, this gooseneck LED light will work well for you.
The spectrum of this device is very balanced but it’s mostly rich in red light and blue light. That’s why the overall light appears purple in color.
You can adjust the light spectrum of the device between blue, red, and purple. You can even adjust its light intensity between 10% and 100%, saving you some bucks in your electric bill.
Likesuns also has a built-in timer that allows you to choose whether you want to keep your light on for 3, 9, or 12 hours a day.
The light is very inexpensive, too.
Just a few notes: trying this grow light out, we found out that the light is not very bright, so it may not be able to support your indoor plants that require medium-light to high-light. We only recommend using this one for plants that demand low-lighting requirements.
Similar to Likesuns, this LED grow light strip is great for low-light houseplants.
The great thing about this purple LED grow light strip is that it can be used to grow plants on shelves. Or, in places where you don’t have much space to install a bulky grow light setup.
Sondiko’s LED light spectrum is very similar to that of Likesuns, and its intensity can be also adjusted between 25% and 100%.
The Sondiko LED grow light also allows you to set up a time before it automatically switches off. You can set between 2, 4, and 8 hours.
Each Sondiko LED grow light pack contains two strips that are around 13 inches long.
Just like all LEDs, these light strips have a very long lifespan (around 50,000 hours). They’re also very cheap (check their prices here on Amazon).
Roleadro 75W is another good purple light to enhance plant growth with low to medium light needs.
Although it’s labeled 75W, the actual wattage of this LED is around 25 watts, which means its light is not that intense.
The spectrum of Roleadro 75W is around 2 times richer in red light than blue light.
The light can be easily hung above your plants, and for the best results, you need to keep a maximum distance of 36 inches between the grow lamp and the plants.
The price of this Roleadro 75W is close to that of Sondiko LED strips.
Toggled purple LED tubes to fit in T8 or T12 fluorescent lights fixtures, so if you have one, you can use those lights to grow your favorite plants.
Although they emit a purple light, those tubes have a very balanced light spectrum with peak wavelengths of 490nm (blue) and 650nm (red).
Each light has a PPF output of around 30 μmol/s, so four toggled LED tubes can cover a good coverage area.
Toggled LED grow tubes are at least 50% more efficient than a fluorescent bulb, so by using them, you’ll save more money on your energy bill.
Last on our list, but certainly not the least, is the Miracle LED grow light. This grow light is not the most intense light out there, but it’s more versatile, so it can be used in different growing setups.
Its purple spectrum is very rich in blue, so it is suitable for plants that need low-light requirements.
The lamp only draws 12W of power, so you’ll need more than one bulb to cover a wide growing space.
You can use this Miracle LED grow light bulb with decorative lighting LED fixture in your living area.
Are Purple LED Grow Lights Outdated?
Many growers are ditching their purple grow lights and replacing them with new full-spectrum white LEDs. But why?
Indoor gardeners are becoming more aware of the fact that plants don’t only need red and blue light, so they’re choosing lamps with spectrums that are also rich in green, yellow, and orange light.
That’s reasonable but getting rid of all purple grow lights for that reason is wrong.
Purple LED Grow Lights Are Effective for Growing
Some of the purple grow lights we mentioned above have highly optimized light spectrums for plants even though they don’t emit white light.
So, it depends on each purple grow light and its characteristics.
But, in general, high-quality purple grow lights will give you amazing results and this is 100% guaranteed.
Maybe, modern LED grow lights use more efficient diodes and have better heat dissipation systems but that has nothing to do with the spectrum of those lights.
So, long story short, purple grow lights are still great for plants.
If you want to take a look at full-spectrum white LED grow lights, you can check HLG quantum boards, which are among the best full-spectrum LED grow lights on the market today.
But, in case you want to use purple LED grow lights, make sure to choose one of the lights we recommended above.
Hope we helped you choose your next purple grow light to use in your indoor garden. Which of the purple grow light above is your favorite? Do you have a recommended purple grow light blub to share? Share your thoughts in the comments below.