Blue Spectrum LED Grow Lights Review

Do you know which color of light is vital for plants to grow? Blue and red are the most essential.

Blue light has a wavelength that ranges between 400 and 500 nm. The light provides relatively high energy to drive the process of photosynthesis and to support growth. It encourages bushy growth rather than extensive growth. When your plants do not get exposure to blue light, they will grow but will become weak and spindly.

Blue LED Grow Lights

When growing your cannabis, you need to ensure that your plants get enough of the specific lights that are of utmost importance. Here are some of the best blue LED grow lights that you can use to supplement your plants.

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Our Top Pick Blue LED Indoor Grow Lights

Yescom 225 Blue LEDs Grow Light Ultrathin Panel

-$3.91 SALE OFF Yescom 225 Blue LEDs Grow Light Ultrathin Panel Hydroponics Indoor Plant Flower Blooming Lamp for Growing Room Tent

It is rare to find an LED grow light that specializes in providing only one spectrum of light. The Yescom Blue LEDs Grow Light is a very thin light fixture that focuses explicitly on producing a blue LED light spectrum. The grow light comes with all that you can use to install it and use it.

You can use it as a supplementary light to another grow light giving a full spectrum light. It all depends on the stage of growth of your plants. The blue light from the lamp is entirely for the vegetative growth phase.

It has a wavelength of 450nm. Since the bulb provides light for only one growth stage of your plants, it is relatively cheaper than full spectrum lamps.

The lamp can deliver a light output of 2475 lumens after only using 22W of power. The grow light can save energy of up to 90 percent. Its LEDs are in a circuit design protecting the lamp from a short circuit when one LED is damaged.

Since the lamp is thin, it cannot house a fan. It, however, has a piece of PCB that helps with the dissipation of heat from the system. The lights are very cool to touch even after running for 24 hours. It has a lengthy lifespan that can last for 50,000 hours in operation.

The grow light comes with its hanging kit, making it very simple to install and start using. It works best in an indoor space that helps the lamp concentrate the light on the plants. If you want to use an LED lamp, but you want one with a specific light spectrum, then this lamp is for you.

Pros

  • It is slim, lightweight and easy to install and use
  • Works incredibly as a supplemental light
  • It provides a high quality light to your plants making them grow healthy
  • It does not produce a lot of heat
  • It can last for a very long time
  • It can provide extensive coverage ensuring that far plants absorb the light
  • It is highly efficient and energy saving

Cons

  • It does not work effectively in open space
  • The company making the light does not offer a warranty

HQRP New Square 12″ LED Grow Light System

HQRP New Square 12' LED Grow Light System 225 Blue LED 14W + Hanging Kit

The HQRP New Square 12″ LED Grow Light is a powerful LED that makes a tremendous complimentary light. The lamp has 225 LEDs giving a blue light with a wavelength of 465nm. It consumes a power of only 14 watts, making it very energy efficient.

The grow lamp comes in a thermoplastic body. Its LEDs have a circuitry body that helps to prevent damage on one LED from affecting the whole fixture. The light from the lamp improves the chlorophyll absorption rate by the plants.

It, therefore, promotes the vegetative growth of your plants. Even though the lamp does not produce any UV or IR rays, it has a UV meter that tells you of the amount of UV in your grow room. The meter color changes from light purple to dark purple when there is a high intensity of UV production.

You can, therefore, protect yourself from the harmful effects of UV light. The grow light comes with a hanging kit making it easy to install the light. It comes with a warranty of 200 days.

Pros

  • The lamp uses durable die-cast LEDs to produce the blue light
  • It is energy efficient as it consumes only 14W
  • It is simple to set up and install
  • It comes with a 200 days warranty

Cons

  • Not many people know of the brand

Miracle LED Almost Free Energy 100W Growth Starter Blue LED Grow Lite

-$1.01 SALE OFF Miracle LED Almost Free Energy 100W Growth Starter Blue LED Grow Lite - Blue Light for Seed Starting and Strong Plant Stems in DIY Horticulture, Hydroponics, and Indoor Gardens (604291) Single Pack

The Miracle LED Growth Starter Blue LED Grow Lite may look similar to the standard incandescent light bulb, but it is quite different. The grow light is quite cheap and cost-efficient. It uses only 9 watts by can readily replace a 100-watt incandescent bulb. The bulb provides enough growing power to help your plants develop strong stems and become healthier. It produces a blue light wavelength of 475 nm. It is then an excellent supplementary lamp to use during the vegetative growth phase. The bulb does not emit any UV light and does not have any mercury. It is perfect for use in any environment. The lamp comes with a one year warranty that is limited to any accidental, liquid, or personal damage. You can increase their efficiency in your grow room by using more than one bulb in a similar way to how CFL bulbs are grown.

Pros

  • The bulb is very cheap
  • It is easy to install and use
  • It does not emit a lot of heat
  • It is very energy efficient as it uses only 9 watts of power

Cons

  • The bulb is quite dim and has a low power output

Diboys 45W LED Grow Lights

LED Grow Lights, Diboys 75W Growing Lamp Bulbs for Indoor Plants, Red Blue Full Spectrum Plant Light for Seedling, Gardening, Hydroponics, Greenhouse

The Diboys 45W LED Grow Lights comes in a pack of two, each with 225 high intensive LEDs. The red LEDs are 165 pieces, while the blue LEDs are 60 pieces. It produces a red light of 620 to 630nm and blue light of 460 to 470nm that help your cannabis plants grow healthier and faster through all the stages.

The bulb does not harm the environment in any way. It has a design of reflecting cups that help to focus the light onto the plants. The lamp is highly efficient and energy-saving as it can provide a light that is three to five times stronger than from incandescent bulbs.

The lamp comes with thick aluminum board and ABS case that safeguard the LEDs from damage. It does not overheat due to its air flowing design. It dissipates heat from the LEDs efficiently, prolonging their lifespan. Even still, it does not produce a lot.

It can provide a covering of 3ft by 3ft when you place the lamp at the height of 2ft. If you want your plants to get the best results, ensure that the lamp stays 1 or 2 feet away from the plants. You can use the light for 10 to 12 hours every day.

The lamp comes with a 12-month warranty and a 30-day guarantee. You can claim 100 percent of your money back within the first 30 days if the light disappoints you.

Pros

  • It produces a powerful blue light that can trigger growth and boost photosynthesis
  • It is easy to set up and use
  • It can last for 50,000 hours when in use
  • It does not produce a lot of heat
  • It is very energy efficient
  • It comes with a warranty and a period to claim back your money

Cons

  • It is not waterproof
  • The brightness of the lamp can affect your eyes

ABI 12W Blue LED PAR38 Grow Light

ABI 12W Blue LED PAR38 Grow Light for Aquarium and Plant Growth (450-460nm)

The ABI Blue LED PAR38 Grow Light is rate above most in the market due to its ability to deliver your lighting requirements. The bulb is not expensive and does not require a lot of power. It provides a light spectrum with a wavelength of 450 to 460 nm.

The light is very bright and efficiently reaches your plants. It uses only high quality parts assembled in the USA. The lamp has a clear, diffused lens that helps to maximize the output. It also helps to increase the coverage. You do not have to worry about heat since the lamp is very cool.

Even though it is small, it comes with an internal integrated ball-bearing fan. The fan helps to extend the life of the fan by ensuring that it remains cool throughout its operation. It does not produce any noise. The grow light can fit in an E26 socket, which you can find in most households.

Apart from using it to grow cannabis in an indoor grow tent, you can use it in an aquarium to grow coral reef. The bulb can run for 50,000 hours or more.

Pros

  • It is lightweight, durable and easy to use
  • It can work in any standard socket
  • The bulb uses high quality components
  • It can last for a very long time
  • It produces a very efficient light
  • It does not emit a lot of heat
  • It comes with a three-year warranty

Cons

  • It does not give any information on PPDF or lumen

Summing up

If you want your cannabis plants to grow well without any problems, you need to ensure that they receive a good supply of blue light. When you notice your plants are growing taller but are weak, it is the blue light that is lacking. You can choose one of the above grow lights to add as a supplementary light.

Bestseller No. 1
LED Aquarium Light Blub, Wolezek 36W LED Plant Grow Light Bulb with 18x2W 450-460nm Blue LEDs for Indoor Plants Veg and Aquarium Plants Growing
521 Reviews on Amazon
LED Aquarium Light Blub, Wolezek 36W LED Plant Grow Light Bulb with 18x2W 450-460nm Blue LEDs for Indoor Plants Veg and Aquarium Plants Growing
  • Advanced Spectrum: 18pcs all blue 450-460nm LEDs provide the most useful spectrum for your plants veg and aquarium plants growing
  • New High Power Blue LED Grow Bulb: Design with 18pcs 2watt super bright LEDs, 90 degree Optical Lens, higher PAR/Lumen out put per watt than other grow bulb, maximize Growth
  • Better Heat Dissipation: Build with new upgraded 0603 aluminum cooling heat sinks, keep good temperature even after 24 hours of continuous use, longer lifespan and more energy less heat
  • Easy to Used: Designed to fit standard E26/E27 socket, 100~240V AC, Easy to set up and use. suitable for mini grow tent/greenhouse and aquariums tank
  • Worry-Free Warranty: 12 months warranty plus 30 days satisfaction or return guarantee, 100% money back
-$2.00 SALE OFFBestseller No. 2
LEOTER Grow Light for Indoor Plants - Upgraded Version 80 LED Lamps with Full Spectrum & Red Blue Spectrum, 3/9/12H Timer, 10 Dimmable Level, Adjustable Gooseneck,3 Switch Modes
9,965 Reviews on Amazon
LEOTER Grow Light for Indoor Plants - Upgraded Version 80 LED Lamps with Full Spectrum & Red Blue Spectrum, 3/9/12H Timer, 10 Dimmable Level, Adjustable Gooseneck,3 Switch Modes
  • Efficient LED Combination: This LED lamp has grow lights made up of 80 efficient growing LEDs (36 red, 16 blue and 28 full spectrum). It meets the conditions of plant growth without sunlight. 1--Full Spectrum(380nm-800nm): Suitable for all plants to root and sprout. 2--Red(660nm)+BLUE(460nm) Spectrum: for blooming and fruits. 3--Red+Blue+Full Spectrum: A mix of Red+Blue+Warm White is best to fuel the growth of your plants.
  • Upgraded Auto ON/OFF Timer: Plant grow lights come with the circular memory timer function allows to automatically turn on/off every day according to your settings: 3H(Blue)/9H(Green)/12H(Red). Which requires no manual operation and takes good care of your plants when you on work or vacation.(Please note: The timer needs to be reset if the grow light is powered off.)
  • 10 DimmableModes: Our grow lamps provides 10 dimmable modes to suit varied stages of plant growth. It has 10 levels of light intensity and has 3 spectral modes to meet different stages of plant-growing needs.
  • Visible Quality and Adjustable: The LED grow lights have a USB connector which makes it convenient to connect in your office or home to USB or AC power plug (includes adapter). The 4-head light has a 360-degree flexible gooseneck made from quality tubing to keep a fixed position. The metal clamp allows the lamp to be placed anywhere in your home or office.
  • Scientific Heat Dissipation Design: Indoor LED grow light is backed by an aviation-grade heat sink powered by a temperature control unit. This improved heat sink efficiently dissipates the heat generated by the lamp to the atmosphere.
-$7.00 SALE OFFBestseller No. 3
Otryad LED Grow Lights for Indoor Plants 20 LED, Plant Growing Lights Full Spectrum Auto ON & Off with 3/9/12H Timer, 9 Dimmable Lightness Clip-On Desk Grow Lamp Bulb
695 Reviews on Amazon
Otryad LED Grow Lights for Indoor Plants 20 LED, Plant Growing Lights Full Spectrum Auto ON & Off with 3/9/12H Timer, 9 Dimmable Lightness Clip-On Desk Grow Lamp Bulb
  • 【Full Spectrum& 9 Dimmable Lightness:】3 lights options (Red/Blue/ Blue & Red/) and 9 dimmable level to meet photosynthesis needs of plants germination, bloom and fruit bearing at different stages and seasons.
  • 【Timing Function & USB Plug】LED grow lights with an auto timing function and a USB plug for plant growth lamps (No Adapter) . Not only you can set it up for lighting every 3 hours, 9 hours or 12 hours, but also you can adjust the distance between the light and plants, according to plant needs.
  • 【High-Efficiency】 Make your plants grow faster and healthier, effectively promotes photosynthesis, increases growth rate, and satisfies plant germination, growth, flowering, and results entire process of light energy needs!
  • 【Stable Clamp & Felxible Gooseneck】The light has a 360-degree flexible gooseneck made from high quality tubing to keep a fixed position. It is strong enough to hold lamp up well and our clip is stable.
  • 【Wide Applications】 Plant Grow Light can be widely used for indoor plants such as succulents, orchid, tomatoes, peppers, roses, basil, rosemary, parsley, lime tree, potted plants, flowering plants and any other fruits and vegetables.
Bestseller No. 4
Grow Lights for Indoor Plants - WEDCOL Red Blue Spectrum Plant Grow Light Adjustable Gooseneck 135 LED Grow Lamp with 3/9/12H Timer, 10 Dimmable Levels & 3 Switch Modes
  • 🌱【5 Head Grow Light】- WEDCOL 2022 new grow lights for indoor plants features powerful Durable Clip, 5 long and flexible 360° gooseneck heads, can easily adjust the angle and distance, provides a wider lighting area than the 2/ 3/ 4 heads grow lights.
  • 🍀【Efficient LED Combination & Red/Blue/Mix Speuctrum】- This LED Plant grouth lamp composed of 5 heads and a total of 135 LEDS (each head 18 red LEDS, 9 blue LEDS ). 1--Red(660nm)+BLUE(460nm) Spectrum: for blooming and fruits. 2--Red+Blue=Mix Purple(Red and blue ) : A mix of Red+Blue is best to fuel the growth of your plants.
  • 🌻【Auto Cycle ON & 3 Timers】- The professional plant grow lamp with auto circular memory timing function, easy to setting and one button to start, the indoor plant grow light will automatically runs cyclically, 3 timers setting of 3/9/12H for more convenience, better solve the problem of inconvenience to take care of plants during work and vacation.
  • 🍓【Superior Quality】 - Our LED indoor plant grow lamp beads which has been tested over 50,000 lighting hours, designed and manufactured grow light with 3 color modes(Red Light, Blue Light & Mixed Light) and 10 brightness settings ranging from 10% to 100%, which effectively supplemented the lack of natural here our indoor plant grow light provides, widely applicable suitable for indoor plants or indoor gardens such as balconies,greenhouses,darkroom,office and so on.
  • 🍅【Scientific Heat Dissipation Design & Buy With Confidence】 - Indoor LED grow light is backed by an aviation-grade heat sink powered by a temperature control unit. This improved heat sink efficiently dissipates the heat generated by the lamp to the atmosphere. 100% satisfaction and money back guarantee, feel free to contact us if there is any issue with our LED plant grow lamp.
Bestseller No. 5
Grow Lights, Clip-on Plant Grow Lights with Red Blue LED Bulbs for House Plants Hydroponics Succulent Growing, 3 Light Modes Timing Function (20)
5,138 Reviews on Amazon
Grow Lights, Clip-on Plant Grow Lights with Red Blue LED Bulbs for House Plants Hydroponics Succulent Growing, 3 Light Modes Timing Function (20)
  • Full Spectrum Grow Light-- Plant grow light has 20 beads, Blue LED grow lights can promote the growth of germination stems and leaves; red LED grow lights can help flowering; blue + red LED Plant grow lights can help flowers, plants and fruits to flower and bear fruit.After using this grow lights, plants can absorb all the light to meet the needs of various plant growth processes. The light wavelengths range from 380nm to 780nm to meet different lighting requirements.
  • Natural Sun Light Required by Plants--This LED grow lights with 3 color modes(Red Grow Light, Blue Grow Light & Mixed Grow Light) and 9 Dimmable options to suit different stages of indoor plant growth,grow light provide different brightness levels can meet the different needs of plants for sunlight in different growth stages.grow light effectively supplemented the lack of natural sunlight and promoted the growth of plants at all stages.
  • Timing Function & High Quality LED Circuits - This grow light with the circular-memory time function allows to automatically turn on/off grow lights every day according to your settings, there is no worry about plant withering when nobody at home after using grow lights. Plant grow lights will be restarted automatically the next day without manual operation.
  • 360° Gooseneck & Easy to Use--This grow light comes with flexible goosenecks with clip can be rotated 360 degrees make grow light easier for you to adjust the angle between the plant grow lamp and indoor plant. This grow light is powered by USB or AC Power Plug(USB power adapter included ).Plant grow light is suitable for indoor plant seedlings grown in a hydroponic greenhouse at your home or you placed in your office.
  • Wide Application & Quality Assurance--Grow light with Red/Blue Spectrum have a lifetime of up to 50000 hours, perfect for all kinds of flowers, vegetables, fruits, and succulents. Helping prolong the flowering time, promote plant germination and flowering, promote the ripeness and sweetness of fruits and vegetables, and promote the health and long-term growth of succulents.
5/5 - (3 votes)

Bowden draws from over a decade of home growing experience as well as consulting for small-scale and hobbyist-level growers. He has written hundreds of articles, thought pieces, and tutorials about growing cannabis at home

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