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GrowPros Solutions - HM480 480 Watt 3ft by 4ft LED Grow Light - Green Thumb Depot
GrowPros Solutions HM480 480 Watt 3ft by 4ft LED Grow Light

GrowPros Solutions HM480 480 Watt 3ft by 4ft LED Grow Light

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SKU: GPS-HM-480

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$199.95
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The GrowPros Solutions HM480 LED Grow Light is a powerful and energy-efficient horticultural lighting system designed for indoor grow tents, hydroponic cultivation, and commercial grow facilities. Built to deliver strong illumination across a 3 ft × 4 ft flowering canopy, this 480-watt full-spectrum LED fixture provides balanced light output that supports plants through every stage of growth—from vegetative development to flowering.

Engineered with an optimized full-spectrum LED configuration, the HM480 closely mimics natural sunlight to maximize photosynthesis and plant health. The balanced spectrum promotes vigorous vegetative growth, improved flower formation, and higher overall yields while maintaining energy efficiency compared with traditional HID lighting systems.

The fixture produces approximately 1300 µmol/s of PPF with an efficiency of around 2.7 µmol/J, delivering strong light intensity and consistent canopy penetration. This performance allows the HM480 to outperform many larger traditional grow lights while using significantly less electricity, making it a practical choice for both professional cultivators and home growers.

Designed for flexibility and control, the HM480 supports 0–10V dimming and wireless control options, enabling growers to adjust light intensity according to plant growth stages. Its passive cooling system ensures quiet operation while maintaining stable temperatures for long-term reliability.

With a coverage area of 3 ft × 4 ft for flowering and up to 4 ft × 4 ft for vegetative growth, the HM480 provides even light distribution across the canopy. The durable design and efficient thermal management make it suitable for continuous operation in demanding indoor cultivation environments.

Key Features

  • 480W full-spectrum LED grow light for indoor cultivation

  • Coverage: 3 ft × 4 ft flowering area (up to 4 ft × 4 ft veg)

  • High output: about 1300 µmol/s PPF for strong canopy penetration

  • High efficiency: approximately 2.7 µmol/J PPE

  • Optimized full spectrum designed for both vegetative and flowering stages

  • 0–10V dimming and wireless control compatibility for precise light management

  • Passive cooling system for quiet operation and reliable performance

  • Wide input voltage: 120–277V for commercial installations

  • Ideal for grow tents, indoor farms, hydroponic systems, and greenhouse cultivation

Is the HM480 a Reliable Option?

The GrowPros HM480 LED Grow Light is engineered for efficient indoor cultivation, offering full-spectrum lighting with added far red to enhance plant development at every stage. With a 480W output, it delivers solid PPFD levels, balanced 3ft by 4ft coverage, and energy-efficient performance. Built with durable components and optimized heat dissipation, it maintains stable operation, making it a great choice for growers focused on consistent results in small to mid-sized grow spaces.

Features & Benefits

Specifications

What is included?

Warranty & Returns

Features

GrowPros HM480 480 Watt 3ft by 4ft LED Grow Light

Built for dedicated growers, the GrowPros HM480 LED Grow Light provides full-spectrum lighting with added far red to support optimal plant growth. With a capable 480W output, it ensures effective light distribution, 3ft by 4ft canopy coverage, and energy-efficient operation. Engineered for durability and steady performance, it promotes healthy plant development, improved flowering, and reliable harvests in both indoor grow setups and smaller-scale cultivation environments.

480W Output Power

3x4 Coverage Area

Full Spectrum Lighting

Controller Compatibility

High PPF Performance

Passive Cooling System

Benefits of LED Grow Lights

LED grow lights offer numerous benefits for plant cultivation. They are energy-efficient, customizable in spectrum, emit minimal heat, and have a long lifespan. These qualities reduce costs, enhance growth, and promote environmentally friendly and low-maintenance cultivation practices.

Instant On/Off

It allows precise control over light cycles.

Full Spectrum Lighting

This promotes healthier and more robust plant growth.

Low Heat Emission

This reduces the risk of heat stress and saves them from damaging

Easy Installation

LED grow lights require less maintenance, saving you time and effort.

Optimized Light Output

Allows you to adjust the light spectrum to suit different plant types and growth stages

Power Saver

LED grow lights save energy, costs, and promote sustainable cultivation.

Durable Design

Constructed with top-quality materials, ensuring prolonged use in various conditions.

Consistent Output

Engineered for sustained performance, guaranteeing optimal light output over time.

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Why GrowPros Solutions?

GrowPros Solutions stands out for delivering high-performance cultivation equipment designed by experienced growers. With over 25 years of industry knowledge, the company focuses on innovation, efficiency, and affordability, helping growers maximize yields and plant quality. Their in-house manufacturing enables faster product development and reliable performance. By offering advanced lighting technologies and practical solutions, GrowPros supports both commercial and small-scale cultivators in achieving consistent, high-quality results.

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Spectrum Matters

The GrowPros HM480 LED Grow Light provides full-spectrum lighting designed to support plants from early vegetative stages through flowering. Its multi-bar configuration ensures uniform light distribution across 3ft by 4ft grow spaces, improving canopy coverage and photosynthetic efficiency. With energy-saving performance and an optimized spectrum, it encourages healthy growth, better flowering, and dependable yields for indoor growers and controlled environment cultivation setups.

Enhanced Full-Spectrum Output

Optimized spectrum supports plant growth from veg to flowering stages.

Uniform 3x4 Coverage

Multi-bar design ensures even light spread across grow canopy.

Efficient 480W Performance

Delivers strong intensity with reduced energy consumption for better results.

Excellent 4.8 out of 5 based on 1,247 reviews
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Jim D
Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I’ll definitely order from them again
Glenn Appleton
The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we’re starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Freddie
Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
Kar
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FAQ Section

What size grow area does the HM480 cover?
The HM480 is designed to effectively cover a 3ft by 4ft flowering area, with the ability to extend up to 4ft by 4ft depending on setup. It also supports larger coverage during vegetative stages, making it flexible for different grow cycles.
Does the HM480 support all plant growth stages?
Yes, it uses full-spectrum lighting that mimics natural sunlight, allowing plants to grow from seedling and vegetative phases through flowering. This balanced spectrum helps ensure consistent plant development and healthier yields.
Is the HM480 energy efficient compared to HID lights?
The HM480 is significantly more efficient, offering up to 30–40% energy savings compared to traditional HID and HPS systems. It converts most of its power into usable light for plants, reducing wasted energy and operating costs.
Can I adjust the light intensity?
Yes, the light includes a built-in dimmer that allows you to adjust intensity levels from lower settings up to full power. This makes it easy to tailor lighting conditions based on plant stage or environmental needs.
Does the HM480 run hot during operation?
No, it uses a passive cooling system that allows it to run cooler than many traditional grow lights. This helps maintain performance, extends lifespan, and reduces the need for additional cooling equipment.
How easy is it to install the HM480?
The fixture comes pre-assembled with a foldable design, making installation quick and straightforward. It also includes wiring options and mounting accessories for flexible setup in different grow environments.

Specifications

SPECS & DIMENSIONS

Gross Weight 26 lbs
Dimensions 42.8 x 32.5 x 1.5 inches

FRAMEWORK & LIGHT PERFORMANCE

Voltage Compatibility

  • Supports 120–277V input range, providing stable and dependable operation across indoor cultivation setups.

LED Layout Design

  • Multi-bar full-spectrum structure with far red ensures strong output and even canopy coverage.

Driver Integration

  • High-quality integrated driver delivers efficient power flow and reliable long-term performance.

Fixture Features

Intensity Adjustment

  • Built-in dimming capability enables precise light control for different plant growth stages.
Brand GrowPros Solutions
RECOMMENDED SET-UP
Flower 3’X4′ AREA, Max: 4’X4′ AREA
Veg 4’X4′ AREA, MAX: 5’X5′ AREA
GENERAL DATA
Wattage 480W
Input Voltage 120V-277V
Controller TrolMaster + LMA14
Control 0-10V dimming (0-100%), Wireless
THD 20%
Daisy Chain Port RJ12
Thermal Management Passive
Working Temperature -40ºF ~ 122ºF
Lifetime L90 > 54,000 Hours
Certifications ETL, DLC, CE, FCC
PPF 1300 µmol/s
PPFD 1121 µmol/(m2*s)
PPE 2.7 µmol/J
AC Voltage 120V / 208V / 240V / 277V
AC Current 4A / 2.27A / 1.96A / 1.69A
AC Power 480W / 472W / 470W / 467W
Power Factor 0.998 / 0.982 / 0.969 / 0.944
SpecSheet PDF

What is Included?

What’s in the box.

  • 1 x LED Grow Light
  • 1 x User Manual for Installation

Warranty Policy

It's recommended to contact GrowPros Solutions for specific warranty information related to their LED grow lights. Please note that warranty details may vary depending on the product model, purchase location, and other factors.

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