Spectrum King LED Grow Lights

  • Sale
  • Regular price £975.00


Spectrum King LED Grow Lights are designed and manufactured by experienced LED professionals who have been creating custom industrial LED Lighting solutions for various industries, including medical, government, military, commercial, and agriculture for over 10 Years. And best of all – WE GROW! So we truly understand the value of efficient lighting from a grower’s perspective and what is required to produce an outstanding harvest.

There is no better company to design and build your next LED grow light. We continue to review and test the newest and most innovative products in the LED marketplace, always looking to come up with the most efficient, cost-effective modern lighting solutions for our clients and for ourselves. The same experts with the LED knowledge have over a decade of experience growing and the hundreds of grow cycles completed, many testing various lighting conditions and sources. We understand what you need in a light.



Replace your power hungry HPS with bright Spectrum King LED Grow Lights that imitate natural sunlight.

Spectrum King LED Grow Lights are designed to mimic natural outdoor sunlight. Why change what Mother Nature has already perfected over millions of years? Sunlight includes many spectrums, both visible and ones we cannot see; even traditional HPS lights put out a high band of nano-meter wavelengths (color spectrums) which is why it has been successful in the agriculture application today. LED grow lights that provide only 2, 3, 4 even 8 colors will never come close to reproducing the effects of sunlight.


Spectrum King LED Grow lights consistently produce spectrums from 380-779nm. This means that not only virtually every visible color is present in the light, but also ones you can’t see. The Spectrum King Series 300 and Series 400 LED Grow Lights truly mimic sunlight and traditional HPS lamps with matching intensities of over 100,000Lux.

American Made Hot Rod Light Engines Power a Winner


Spectrum King LED photosynthesis diagramWe all know that blue and red are the wavelengths that dominate the “active photosynthesis” portion of the spectrum, so you might think that providing these colors alone might circumvent the rules of nature. But there is a problem: Productive plants need to photo-respirate. When plants become heated (by intense yellow light) the stomata on the leaf surfaces open up and allow photo-respiration to occur. When photo-respiration takes place the plants go into “work out” mode and want to consume nutrients just like humans want to drink water. Traditional LED arrays only carry the spectrums that activate after the photo-respiration period takes place. This is the reason traditional LED lights sometimes finish cycles with immature plants that produce low yields. By supplying plants with only limited “beneficial” spectrums (pink light) from traditional LED arrays, you are essentially putting them into a permanent chill mode. Although this may produce healthy plants, they will not yield as much as plants under Spectrum King LED Grow Lights.


Spectrum King 400+ LED Grow Light compared with HPS and traditional LED


While HPS lights require over 1,000 watts to produce the intensity needed for healthy plants, Spectrum King LED Grow lights do the same using only 450 watts. This allows growers to save on electricity and benefit from lower ambient temperatures — which translate to less A/C usage and expense.


In a grow room, cleanliness is an important factor. Unfortunately, at times gardens can be infested with bugs and other insects — even soil and dust. Many of today’s LED lights have fans for cooling. But cooling fans also have a down side: bugs get sucked in and so does moisture from humidifiers and misters. The LEDs get covered with sticky “garbage” and over time lose cooling and even light performance.

Spectrum King LED Grow Lights are IP65 rated, which means they are completely sealed from dust and moisture and can even be washed with a garden hose!

Series 300 LED Grow Light

Power Consumption:        340W
LED Initial LUX:               90,000 lux (60° reflector)
Recommended Cooling:  1,000 BTUs
Net Weight:                      9.2 kg
Size:                                18-1/16″ x 12-1/8″ x 12-9/16″


Series 400 LED Grow Light

Power Consumption:      440W
LED Initial LUX:              125,000 lux (60° reflector)
Recommended Cooling: 1,350 BTUs
Net Weight:                     10.8 kg
Size:                               18-1/16″ x 14-9/16″ x 12-9/16″

Series 400+ LED Grow Light

Power Consumption:       440W
LED Initial LUX:               150,000 lux (60° reflector)
Recommended Cooling:  1,350 BTUs
Net Weight:                      10.8 kg
Size:                                 18-1/16″ x 14-9/16″ x 12-9/16″

Specifications for all Spectrum King LED Grow Lights

Light Source:               LED
Input Voltage:              110V-277V AC
Frequency Range:      50~60Hz
Ideal Replacement:     MH/HPS Lamps
Body Lens:                  Glass
Light Beam Angle:       60°, 90° & 120° available
Body Case Material:    Die Cast Aluminum
Suitable Height:           18-48″ from plants
IP Grade:                     IP65 (can be washed!)
Lifespan:                      >50,000 Hrs