Best Blue Plant Grow Lights of 2025

Toby Butcher Avatar
Toby Butcher
Last Updated: 2 Feb 2025

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Blue plant grow lights are a type of artificial lighting that is specifically designed to promote plant growth by providing the necessary light spectrum for photosynthesis. These lights emit a blue light that is essential for the vegetative stage of plant growth, making them ideal for indoor gardening, hydroponic systems, and greenhouse cultivation. Blue plant grow lights are an effective way to provide plants with the light they need to thrive, even in low-light conditions, and can help to increase crop yields and improve the overall health and vitality of your plants.

At a Glance: Our Top Picks

i-Venoya Full Spectrum LED Grow Light Cover #TOP 1
i-Venoya Full Spectrum LED Grow Light
ftb score rating icon 9.9
Garpsen 3-Head Full Spectrum Plant Lights Cover #TOP 2
Garpsen 3-Head Full Spectrum Plant Lights
ftb score rating icon 9.8
Melofo LED Grow Light Bars with Timer Cover #TOP 3
Melofo LED Grow Light Bars with Timer
ftb score rating icon 9.6

Top 10 Blue Plant Grow Lights

#TOP 1

i-Venoya Full Spectrum LED Grow Light

225RBUI75W
75w Led Grow Light
2 Pack
i-Venoya Full Spectrum LED Grow Light Cover
i-Venoya LED Grow Light for Indoor Plants Growing Lamp 225 LEDs UV IR Red Blue Full Spectrum 75W LED Plant Lights Bulb Panel for Hydroponics Greenhouse Seedling Veg and Flower (2 Pack)

The i-Venoya Grow Light features 225 high-quality LEDs, providing a full spectrum of 390nm-730nm, including UV, IR, red, and blue light. This ensures your plants receive the ideal light for all growth stages, enhancing seeding, germination, vegetative, and flowering processes. It is energy-efficient, drawing only 27W while replacing traditional 100W HPS or HID lights, making it perfect for a 2'x2' growing space. Additionally, its wide application range means you can use it in various settings, from hydroponics to indoor gardening, catering to numerous plant types.

What We Like
Full spectrum for all growth stages
Energy-efficient with low power draw
Wide application for different plants
Quiet operation with excellent cooling
#TOP 2

Garpsen 3-Head Full Spectrum Plant Lights

Garpsen
BL-J20A
3arms-redblue
3Head
Garpsen 3-Head Full Spectrum Plant Lights Cover
Garpsen Plant Lights, 3 Heads Red Blue Warm White Full Spectrum Grow Lights for Indoor Plants, 60 LEDs Led Grow Light for Seed Starting, with Auto ON/Off 6/12/16H Timer, 5 Dimmable Levels

The Garpsen Plant Grow Lights are designed to enhance your indoor gardening experience. With a 6/12/16 hour timer, you can set the lights to automatically turn on and off, ensuring your plants receive the right amount of light, even when you are away. The full spectrum feature, with 60 LEDs, provides optimal lighting for plants at all growth stages, helping them thrive. You can also choose from three lighting modes and five dimming levels, which allows you to tailor the light intensity to suit your plants’ needs effectively.

What We Like
Flexible gooseneck for easy adjustment
Three lighting modes available
Energy-efficient with low power consumption
Longer timer settings for convenience
#TOP 3

Melofo LED Grow Light Bars with Timer

MLT-GB4063-01
Red/Blue/Warm-a
Melofo LED Grow Light Bars with Timer Cover
Melofo LED Grow Lights Bars for Indoor Plants Red/Blue Warm Lights 3500k/660nm/450nm Full Spectrum with 10 Dimming Level and Timer 3 Lighting Modes Clip-on 360°Adjustable Gooseneck 2-Heads Grow Lamp

The Melofo Grow Light Bars are designed to support your indoor plants with optimal lighting. With three lighting modes and ten dimming levels, you can tailor the brightness to meet the specific needs of your plants, ensuring healthy growth from seedling to maturity. The timed setting allows you to automate the light schedule, providing consistent care even when you are not home. Plus, the 360° adjustable gooseneck makes it easy to position the lamp perfectly for your plants. This user-friendly design ensures your indoor garden thrives year-round.

What We Like
Customisable light settings
Automated timer function
Flexible positioning
Energy-efficient operation
#TOP 4

Senelux LED Grow Light Strip with Timer

ZWLDT-01
Senelux LED Grow Light Strip with Timer Cover
Senelux LED Grow Light Strip for Indoor Plants with Auto ON & Off Timer, Full Spectrum / 4 Dimmable Levels/USB Plug-in Plant Light for Gardening Greenhouse Hydroponics

The Senelux Grow Light Strip is designed to enhance the growth of your indoor plants. With a full spectrum of 48 LEDs, combining red and blue lights, it helps your plants absorb essential energy for germination and flowering. The auto ON & OFF timer allows you to set it for 2, 4, or 8 hours, ensuring consistent care without manual intervention. Additionally, with four dimmable brightness levels, you can easily adjust the light to meet the specific needs of your plants, promoting healthy growth.

What We Like
Full spectrum light for plants
Auto timer for convenience
Four brightness levels
Easy installation options
Suitable for various indoor plants
#TOP 5

Wolezek 2FT Full Spectrum Grow Lights

BL-D60A
Wolezek 2FT Full Spectrum Grow Lights Cover
wolezek Grow Lights for Indoor Plants, 2FT T8 Full Spectrum Led Grow Light, with Dasiy Chain Design, 384LEDs(4/Pack) Plant Grow Lamp for Seedlings, Greenhouse(Red/Blue/White)

The Wolezek Grow Lights are designed to support your indoor plants through every growth stage. With upgraded full spectrum lighting, they provide essential blue and red light, alongside 6500K white LEDs, ensuring optimal photosynthesis. Their new design features 384 LEDs, delivering a brightness that can replace traditional 300W HPS lights while consuming less power. Installation is a breeze with the plug-and-play feature, allowing you to connect up to eight lights in a series, saving you both time and effort.

What We Like
Full spectrum lighting for all stages
Energy-efficient and bright LEDs
Easy plug-and-play installation
Excellent heat dissipation design
#TOP 6

Melofo 2-Branch Indoor Plant Grow Lights

MLT-GB4062-02
Blue/Red/Warm
Melofo 2-Branch Indoor Plant Grow Lights Cover
Melofo 2-branched Grow Lights for Indoor Plants 3000k/660nm/450nm Growing Lamps Full Spectrum Plant Auto ON & Off Timer 3/9/12H,3 Modes, Red/Blue/Warm Lights 10-Level Dimmable Ues for Small Plant

The Melofo Plant Grow Lights offer versatile lighting solutions for your indoor plants with three lighting modes and ten dimming levels. You can easily adjust the brightness to suit the growth stages of your plants, ensuring optimal light intensity. The automatic timer feature allows you to set the lights for 3, 9, or 12 hours, giving you peace of mind as it operates on a daily schedule. With energy-efficient LED technology, these lights consume very little power while providing a full spectrum of light similar to natural sunlight.

What We Like
Multiple lighting modes available
Automatic timer for convenience
Energy-efficient LED technology
Flexible installation options
Suitable for various indoor plants

SANSI 30W LED Grow Light with Adjustable Panels

C21FS-BE27-30W
White
30W-E27 Base
SANSI 30W LED Grow Light with Adjustable Panels Cover
SANSI 30W LED Grow Light for Indoor Plants, 4000K Sunlike Full Spectrum Plant Growing Lamp with 4 Adjustable Lighting Panels for Hydroponic Greenhouse Veg (E27 Base, PPF 42 umol/s, Coverage 6 Sq Ft)

The SANSI LED Grow Light offers a 4000K daylight full spectrum, ensuring your plants receive a light spectrum similar to natural sunlight, which effectively supports their growth. With its high light transmittance lens, you can expect an impressive average PPF of 42 umol/s, enhancing light distribution and reducing wastage. The patented chips on ceramic design ensures efficient heat conduction, prolonging the lifespan of the light beyond 25,000 hours. Additionally, its adjustable panels allow you to bend the light direction from 0° to 90°, catering to the specific needs of various plants.

What We Like
Full spectrum for plant growth
High light efficiency
Long lifespan
Adjustable light direction
#TOP 8

iPower 40W Full Spectrum Grow Lights

40W LED Plant Grow Light Strips Full
Red&blue
iPower 40W Full Spectrum Grow Lights Cover
iPower 40W Grow Full Spectrum for Indoor Plants with Auto ON/Off 3/9/12H Timer, 10 Dimmable Levels 48 LEDs Per Light Strip, 2 Pack, 6 Tubes, Red&Blue

The iPower Grow Lights provide a full spectrum of light, mimicking sunlight to support the growth of your indoor plants. With 10 adjustable brightness levels, you can tailor the light intensity to meet the specific needs of your plants at various growth stages. The convenient timer function allows you to set the lights to automatically turn on and off after 3, 9, or 12 hours, saving you from daily manual adjustments. Installation is a breeze, thanks to included screws and double-sided tape, making it an easy addition to any plant stand.

What We Like
Full spectrum light for plants
Adjustable brightness levels
Automatic timer function
Easy to install
Wide usage options

Auraglow LED Plant Grow Light for Indoor Gardening

AG650
Blue,white,red
Auraglow LED Plant Grow Light for Indoor Gardening Cover
Auraglow LED Plant Grow Light with Hydroponic Full Spectrum Grow Mode & Display Lamp for Herbs, Fruit, Veg & Indoor Plants

The Auraglow Grow Light is an excellent assistant for indoor gardening, helping you nurture fresh herbs and vegetables effortlessly. It features a Grow Mode that delivers a 12-hour cycle of full spectrum light, which optimises photosynthesis and promotes robust plant growth. The Display Mode offers eight bright neutral white LEDs, perfect for showcasing your plants in the evening. Its extendable telescopic arm allows you to adjust the height from 23cm to 49cm, ensuring it suits various plant types. With simple touch controls, you will find it incredibly user-friendly.

What We Like
Two lighting modes for versatility
Extendable arm for different plants
Easy touch controls
Convenient USB power
Bright display for evening use
#TOP 10

LED Plant Grow Light with Red and Blue Spectrum

BODEL6572-3
108leds
LED Plant Grow Light with Red and Blue Spectrum Cover
LED Plant Grow Light Foldable Red and Blue Spectrum Plant Light Triple Leaf Trellis Nursery Grow Lights

The Lixada Grow Light is designed to enhance your plants' growth with its advanced LED technology, ensuring high-intensity light while consuming less energy. Its foldable design allows you to adjust the three leaves for optimal light coverage, making it easy to cater to different plant needs. Emitting both red and blue light, this lamp supports photosynthesis and boosts plant health. It's especially beneficial for seedlings, providing the essential light for germination and early stages of growth, ensuring healthy development.

What We Like
Energy-efficient LED technology
Adjustable foldable design
Red and blue light spectrum
Ideal for seedlings
Versatile for various gardening
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Are blue lights good for growing plants?

The effect of blue light on plants is directly related to chlorophyll production. Plants that receive plenty of blue light will have strong, healthy stems and leaves. Red light is responsible for making plants flower and produce fruit.

2. Do Grow lights have blue light?

Growers generally have two options when it comes to horticultural LED spectrums – “full spectrum” or “broad-spectrum”, which appears as white light; and “red/blue spectrum”, which can appear as purple or pink light.

3. Is blue light or white light better for plants?

White light is actually made by combining other colors on the spectrum such as red, green, and blue. Therefore white light will actually be much more beneficial for the photosynthesis process than yellow light.

4. Are blue LED lights good for plants?

Blue LED Lights Blue light is a specific light wavelength that is needed by plants for photosynthesis and growth and is ideal for use on seedlings and young plants. Blue LEDs are far more efficient than they were a few years ago and are useful in grow light systems in combination with other light wavelengths.

Editor's Notes

During our blue plant grow light research, we found 63 blue plant grow light products and shortlisted 10 quality products. We collected and analyzed 9,147 customer reviews through our big data system to write the blue plant grow lights list. We found that most customers choose blue plant grow lights with an average price of £18.46.

The blue plant grow lights are available for purchase. We have researched hundreds of brands and picked the top brands of blue plant grow lights, including i-Venoya, Garpsen, Melofo, Senelux, wolezek.

Written by
Toby Butcher Avatar

Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.