GalaxyHydro 300W | 300 WATTS | ESTAGECRAFT

GalaxyHydro 300W | 300 WATTS

GalaxyHydro 300 Watt Dimmable LED Grow Light
(Last Updated On: December 9, 2022)

The GalaxyHydro 300W dimmable LED Grow Light is an inexpensive full spectrum grow light for the budget minded individual. It is very simple to install and operate with only an on/off switch and a dial to set the intensity which is great for young plants or clones. Check out our review the best led grow lights and grow tents.

Galaxy Hydro 300W Review

The LED panel is designed for the indoor grower and provides the full spectrum of light for both vegetative and flowering stages of growth. This small panel is perfect for a small indoor garden for a few plants. 

Galaxyhydro over 2 plants

Light Spectrum

The GalaxyHydro 300W is a full spectrum LED grow light with 9 bands from 430-730nm. The light spectra included are UV 380~400nm, 430~440nm, 450~460nm, 470nm, 610~615nm, 620~630nm, 650~660nm, white light, IR~730nm. 

Diode Configuration​

There are one hundred 3 watt epiLED diodes set at 90 & 120 degrees for the best coverage. The panel has the optimal ratio of red and blue lights for your cannabis plants for both vegetative and flowering stages. Ultraviolet and infrared light with the function of sterilization of the plant surfaces of bacteria, stimulating cell division and increasing the overall growth.

  • 1 x 430nm (UV)
  • 2 x 440nm
  • 6 x 460nm
  • 2 x 470nm
  • 2 x 610nm
  • 54 x 630nm
  • 30 x 660nm
  • 1 x 730nm (IR)
  • 2 x white


The panel comes with 3 extremely quiet fans at only 55 dB.  The UL approved fans draw air in from the side and out the top of panel ensuring the LED diodes remain cool.

 Hanging the panel within a few inches of your plants maximizes light penetration . Great for closet growers.​ The panel is cool to the touch.

[easyazon_link identifier=”B00NAPA7GE” tag=”estagecraft-20″]Galaxyhydro 300w Fans[/easyazon_link]

[easyazon_link identifier=”B00NAPA7GE” tag=”estagecraft-20″]Galaxyhydro 300w Dimmable Switch[/easyazon_link]

Dimmable Switch

As you can see from the photo, you can adjust the light intensity with the dial next to the on/off switch. This is the only low cost LED Grow Light I’m aware of that can set the light intensity.

This allows you to use the GalaxyHydro 300W for your marijuana clones instead of using florescent tubes. Increasing the intensity as your clones are ready for the next stage.

Daisy Chain

The GalaxyHydro 300W can be daisy chained allowing you to expand your indoor garden. All you need to do is plug the power cord from one panel into the next as illustrated in the photo.

As the panel only uses 140 watts you can daisy chain 3 or 4 panels without worrying about overloading your electrical circuit.

[easyazon_link identifier=”B00NAPA7GE” tag=”estagecraft-20″]Galaxyhydro 300w Daisy-Chain Diagram[/easyazon_link]

[easyazon_link identifier=”B00NAPA7GE” tag=”estagecraft-20″]Galaxyhydro 300w Kit[/easyazon_link]


Item Weight: 7.6 lbs

Dimensions: 15.8×8.3×2.4 inches

Max Coverage at 24″ Height 3x3ft

Height 2x2ft

Avg. Power Draw: 140 watt

100 High Intensity 3 Watt Diodes

LEDs Angle: 90° & 120°

Lifespan: 50,000 hours

What’s in the Box

Hanging Kit

6ft Power Cord

Reflector 300W

Warranty Information

​The GalaxyHydro 300W has a 2 year warranty with a 30 day money back guarantee.  The 50,000 hour lifespan far exceeds the warranty period. You can be assured the panel with perform as expected for the first 24 months. 


  • Full Spectrum
  • Dimmable
  • 2 year warranty
  • Low Cost


  • Non-adjustable Spectrum

Best Cannabis Cultivation Sites

We specialize in reviewing the best LED grow lights and are unable to provide everything related to marijuana cultivation. Below are a few links to several blogs and government sites.

  1.​ – Preeminent source for cannabis information since 1974
  2. TheWeedBlog – Marijuana News and Information
  3. Oaksterdam University – Horticultural training in the Cannabis Industry
  4. – Recreational Marijuana Information
  5. California Department of Food & Agriculture – Medical Cannabis Cultivation Program
  6. Government of Canada – Cannabis for medical purposes
  7. National Organization for the Reform of Marijuana Laws – Marijuana Laws

Final Thoughts​

The GalaxyHydro 300W dimmable LED Grow Light is an inexpensive alternative to using a 250 watt HPS bulb. It is best suited for someone just starting out with a small indoor closet garden. The panel can be used for starting clones and then increasing the intensity as the plant grow. 


Hey I'm Dennis, Thanks for stopping by. I'm a Horticultural Expert in growing marijuana indoors and hydroponics. I will be sharing my expertise in growing marijuana with LED Grow lights.

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