What’s Different about Spectrum King Led Grow Lights?


Spectrum King LED full spectrum LED grow lights offer more than just everyday illumination. They are designed to mimic natural outdoor sunlight to help your plants grow healthier and yield better harvests with a quality and intensity of light they are accustomed to.

Sunlight includes many spectrums, even beyond what we can see with the naked eye such as ultraviolet and infrared. Traditional HPS lights put out an intense high band of limited nanometre wavelengths (colour spectrums), which is why they have been so successful in agricultural applications up to today. LED grow lights that provide only two, three, four, or even eight colours will never come close to reproducing the effects of sunlight. Why change what Mother Nature has already perfected over millions of years?

Spectrum King LED full spectrum LED grow lights consistently emit wavelengths in the range of 380 to 779nm. This includes those wavelengths visible to the human eye (what we perceive as colour) and the invisible wavelengths, like ultraviolet and infrared. Our 400+ and SK600 LED grow lights truly mimic natural sunlight while matching intensities of traditional HPS lamps with over 100,000 Lux.

We know blue and red wavelengths dominate the “active photosynthesis” portion of the spectrum, so you might think that providing these colours alone will circumvent the rules of nature. However, there is a problem: productive plants, whether they’re on a farm or in nature, need to photorespire. When plants become heated by intense yellow light like HPS or natural sunlight, the stomata on the leaf surfaces open up to allow for photorespiration. During photorespiration plants go into “workout” mode, which causes them to consume more nutrients, just like humans want to drink water or eat after a gym session.

The Benefits of Full Spectrum Light for Plants

Traditional LED arrays tend to only emit the spectrums that activate after the photorespiration 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 the limited “beneficial” spectrums (pink light) from traditional LED arrays, you are essentially putting them into a permanent chill mode. You may end up with some healthy plants, but they will not yield as much or be as healthy as plants under a full spectrum LED grow light. If red and blue light were truly all that plants needed then why do HPS lights which don’t have much of either colour outperform them? The answer is intensity which plants go for first then spectrum. When you give your plants both intensity and full spectrum light they will pay you back every time.

The Benefits of Spectrum King LED Grow Lights for You

While HPS lights require over 1,000 watts to produce the intensity needed for healthy plants, Spectrum King's full spectrum LED grow lights offer the same intensity while using only 450 watts. For those of you using double ended bulb fixtures which use over 1,150 watts, take note of this; you can get more intensity with just 640 watts by using the new SK600. This equates to less money spent on utilities as you’ll use less 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 that affects your plant’s growth and your own personal health. Insects and pests are common in most gardens, indoor or otherwise, while stray soil and dust can easily clog equipment which can prevent proper ventilation. Spectrum King grow lights are IP65 rated which means they are completely sealed from dust and moisture. Many of today’s LED lights have fans for cooling but these fans have a downside. Bugs and moisture from humidifiers and misters can easily get sucked into the fans. Anything in the air of your grow room can get into the LED housing of conventional LED lights. The LEDs and their cooling fans get covered with sticky “garbage” and over time lose cooling and even light performance. Our lights are easy to clean as the IP65 rating means you can spray your light with a hose without damaging the housing.

In the following video segment, the guys at Spectrum King shows you what you never want to see inside your light:


Each product is warrantied to provide at least 90% of the light’s original output for three years, but for added peace of mind, Spectrum King also provides a 5 year mechanical warranty on all 400+ and the new SK600 grow lights. All 100 Watt Series lights are covered by our 3 year Warranty.

The new 100 watt lights, Mother’s lil Helper & Closet Case, model numbers MLH100 & CC100 respectively, come with straight 3 year warranties.