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Great Energy-Efficient LED Grow Lights | The Spectrum King SK603
Dino H. Carter
Great Energy-Efficient LED Grow Lights | The Spectrum King SK603

As you know, we recently launched a new full spectrum LED grow light, the SK603. Literally every aspect of this fixture is new and once turned on it seems like you’ve got the sun indoors with that full spectrum glorious light clearly reminiscent of the afternoon sun on a summer day. We paid very close attention to detail on this grow light fixture with it being equally aesthetically pleasing and cutting-edge garden technology wrapped up into one phenomenal package. If you’re looking for an energy-efficient grow light the SK603 is perfect!

From advanced thermal dynamics to a more efficient power supply to diode arrangements for optimized output performance this sleeker and more elegant model, which is the SK603, really brings its performance capabilities to another level. The addition of dual RJ12 ports for controller integration allows you to set from a couple to dozens to hundreds of lights into groups that you can set schedules for sunrise and sunset, on and off times, adjust their output levels (which will be necessary for many strains and other types of plants) with many off the shelf controllers available today if needed for an overall better garden experience.

Our LED grow lights are energy-efficient and easy to use! Whether you look for BPF, PPF, umol/j or any other output measurement the SK603 will impress you with its numbers. Keep in mind that many people now publish their numbers as well but it is always important to see where those numbers come from and how they arrived at them and more importantly who actually measured them. We have always allowed third party industry approved and certified labs to take our fixtures and report back their findings in a very professional and transparent way. This allows you to grow with confidence.

These lights were made with plants in mind as a singular focus. Having good numbers is great but having better plants is well… just better. The SK603 grow light has a BPF of 1,623.2. As that is the measurement of the spectral range that plants actually use that is very impressive indeed. Knowing that sensitive strains are grown with canopy levels in the 650-750 PAR range and more light hungry plants take 1,200 or so in most indoor grows you can see that you have a light made to grow plants that require the most intense light yet it only uses 656 watts of power at 120 volts and even less at higher voltage.

With the new horticultural standards for efficiency requiring 1.5 umol/j or higher it is nice to know that the SK603 comes in at 2.2 umol/j. Just so you know umol/j (micromoles of light per joule of energy used to create that light) shows how well a fixture uses the power it consumes. The energy-efficient benefits of  Spectrum King's SK603 grow lights are one reason why people choose them. In older terms it means that you get a lot more light per watt of energy used. No bulb fixtures come anywhere close to that level of efficiency.

All of that light coming out of a fixture that uses minimum 35% less power than any 1,000 watt bulb fixture yet gives a better spectrum and no damaging rays of light nor the excess heat that bulbs emit is clearly a win for your environmental systems too. For an example if you have 100 HPS 1,000 watt bulb fixtures running in a grow site in a hot area say like southern California you would need almost 50 tons of air conditioning to cool the room off to keep it plant safe. With that same 100 lights being SK603 you wouldn’t even need 20 tons of AC ! and you would cover the same canopy footprint. If you’re looking for a great, energy-efficient grow light option, iIt is nice to see an LED fixture that is a true 1:1 replacement for 1,000 watt HPS fixtures whether single ended or double ended bulbs.

From there a simple question comes up: have you ever seen anyone clean a light bulb? Probably not and if you did that process most likely did not go well. Bulbs don’t age well nor do they like being handled or wiped down. Typically in commercial grow facilities they know that bulb and reflector need to be replaced at least once a year. Many places change bulbs more often than that as they can clearly see degradation in their results after a few harvests. Those costs incurred and efforts put forth to do that don’t exist with LED fixtures. With the SK603 you could literally hose it down while on and not hurt the light in any way! If you’ve ever worked in a greenhouse or indoor grow room you know how dirty can get even when you’re cleaning the room regularly. Knowing that you have no bulbs to change and you can just rinse the light off from time to time and keep growing is like giving you hours of your life back that you would have spent maintaining bulb fixtures.

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