What Makes an UNDEFEATED Grow Light

Discussion in 'Rollitup Advertisers' started by HydroGrowLED, Apr 11, 2019.


    HydroGrowLED Well-Known Member Rollitup Advertiser

    Firstly we'd like to say it's great to be back as a company to RIU with the grassroots growers who made us famous. It's been 9 years since we contributed to this forum, and for those of you who aren't familiar with our brand, let me give you a brief background of Penetrator LED Grow Lights.

    Penetrator LED Grow Lights were released in July 2009 based on a mathematical theory developed by our founder "LEDGirl". Back then people called her crazy for claiming she could calculate how any competitor would fare against her products; and yet one independent side-by-side after another in the winning circle proved her correct. To this day Penetrator Grow Lights are undefeated in independent side-by-side grow competitions after a decade on the market. Our 336X grow light set the World Record for highest single autoflower yield not once, but twice by grower Seymour Buds.

    Our dominance in the LED industry didn't happen by chance, it happened because our founder cracked the spectral equation that no one else has been able to figure out since. So in keeping with our open-source development, let me share with you one of the reasons Penetrator LED Grow Lights deliver an average of 2-4X the yield per watt of competing LEDs and HID.

    (Part 1): The Mathematical Theory Behind Penetrator LED Grow Light Spectrum
    First what is light? It's a wave of electromagnetic energy that travels at different frequencies or "wavelengths". The length of each wave (measured in nanometers "nm") determines the color of light and also how much energy it is able to deliver per second. Each light wave is equal to one photon of energy. The shorter the wave, the more photons are delivered per second.


    The frequency of a wave is measured in Hertz (Hz), with 1Hz being equal to one wave per second. Light is the fastest moving wave in the Universe traveling at almost 3 million meters per second (186,000 miles/sec). Because of this light is typically measured in Terahertz (THz) or 1 trillion Hertz.

    We can express the photon energy carried by light wavelengths in electron volts (eV). In physics the eV is the amount of energy gained by an electron when the electric potential increases by 1 volt (V). The shorter the wave, the more energy in eV (or photons) it contains per second.

    In plants, chlorophyll pigments contain a porphyrin ring (a stable, ring-shaped molecule around which electrons are free to migrate). Because electrons move freely, the ring has the potential to gain or lose electrons readily. This is the method by which chlorophyll captures the energy (eV) from any light source. Once these electrons are captured by chlorophyll, they are passed along to alternate molecules that use them to manufacture sugars. These sugars then fuel the growth of the plant.


    Just because a wavelength has eV energy, does not mean plants are able to absorb or convert it. Chlorophyll acts like a light filter, absorbing some colors and reflecting others. For energy to be captured and used for growth, it must be within the absorption range of Chlorophyll A, B or Carotenoids.

    Wavelengths with the highest absorption by Chlorophyll/Carotenoids are referred to as absorption peaks. These peaks vary from one plant species to the next; however for Cannabis they are predominantly found at 439 & 667nm for Chlorophyll A, 469nm and 642nm for Chlorophyll B.

    But just because Chlorophyll/Carotenoids are able to absorb this light, does not mean it is converted into sugars the same from one color to the next. The Photochemical Efficiency of chlorophyll determines how much absorbed light can be converted into processing sugars.

    By this point a lot of information has been thrown at you, so now it's time to summarize how all of this information works together in our part 1 of our theoretical equation that created the #1 performing grow light in the world.

    Our Theoretical Equation for Determining the Electrical Efficiency of Wavelengths
    1. Light moves in waves and each wavelength carries a specific electrical energy expressed in electron Volts "eV" (an expression of photons per second).
    2. Chlorophyll captures electrons from light via the porphyrin ring and transfers these electrons to other molecules to make sugars for plant growth.
    3. How much light (eV) Chlorophyll can absorb is based heavily on the wavelength of light and is known as absorptive efficiency.
    4. How much captured light energy is converted to sugar is based heavily on the wavelength of light and is known as photochemical efficiency.


    So to calculate how much potential energy any wavelength has, you multiply the eV by the absorptive efficiency of chlorophyll/carotenoids, then by the overall photochemical efficiency. This gives you the net eV available for photosynthesis. Dividing the net eV from the total available eV gives you the net efficiency of each wavelength. Keep in mind the photosynthetic peaks and photochemical efficiency vary from one plant to the next, so this graph is simply a representation based on a single type of plant.

    Penetrator LED Grow Lights use 6 wavelengths of light found at 440, 470, 525, 640, 660 & 740nm. These are among the most efficient wavelengths when we look at the conversion of electrical energy (light) to growing energy (sugars). For example 39.6% of the watts used to create 660nm are converted into energy by your plants, compared to only 3% for 620nm. Thus Penetrator grow lights waste far less energy compared to those that use 9, 11, 13 or 15-wavelengths, or those who rely heavily on a white spectrum.
    Last edited: Apr 11, 2019
    a mongo frog

    a mongo frog Well-Known Member

    Wait!!! Is this light better then HPS?!?!?!

    WingAK Well-Known Member

    Probably not.
    Bubblin, Ryante55, DemonTrich and 2 others like this.

    HydroGrowLED Well-Known Member Rollitup Advertiser

    (Part 2): The Scientific Data Behind Penetrator LED Grow Light Spectrum

    The first part of developing a spectrum for growing plants is determining which colors have the highest conversion from electrical energy into photosynthetic energy. The second part is figuring out how much of each wavelength is needed to produced the desired growth effects in your plants. But let's start by looking at the LEDs used for Penetrator grow lights.


    The graph above is real-life quantum test data from LEDs used in Penetrator lights. You will notice the Volts of each LED is very similar to the eV of each wavelength discussed in part 1. The small difference is typically due to electrical inefficiency of the light source. You will notice the watts of each color are different. This is because volts x amps (in this case 700mA or 0.7A) equals watts. You will also notice a PAR measurement (photosynthetic active radiation) expressed in umol (micromoles). Umol is an expression of PPFD or photosynthetic photon flux density. This data is highly useful for determining spectral ratios and telling you how much light overall is available for photosynthesis. Umol/watt data also bears a lot of resemblance to the theoretical equation discussed in part 1.

    Real-Life testing reported in NASA Study CP-05-3309 shows how different ratios of light in the red, green and blue regions affect growth and yield. This test data is specifically for Starfire Tomatoes, which closely resemble the lighting needs of Cannabis. The ratios that provided the highest daily yield with the shortest time to harvest is 75% red, 15% green and 10% blue. You might ask "why so little blue?" Remember that blue lights contains the highest amount of energy per second (which is why ultraviolet light can burn your skin). Too much of this high energy light can cause unwanted changes to plant development and yield.


    I'm sure you've asked yourself "ok, what is 740nm for then?". It's to supercharge your growth rates. In 1957 a pioneering scientist named Robert Emerson discovered that when far red light (700-750nm) is shown simultaneously with deep red light (660-680nm), the rate of photosynthesis increases by 30%. Penetrator grow lights also contain a higher percentage of 740nm in our spectrum than any other LED.


    While many in the industry think that plants only reflect green light, this couldn't be further from the truth. Numerous studies (including one published by Oxford University) show that green light acts as a penetrant, allowing for higher levels of absorption of blue and red light through lower leaf layers. The more layers of chloroplasts you can penetrate, the more energy the plant is able to capture for photosynthesis. So green light isn't just important for balancing out spectral ratios, it has a huge impact on how efficiently blue and red light can penetrate the leaves of your plants.

    Our Scientific Equation for Determining the Most Powerful Spectrum

    So in summary:

    1. Once we know the wavelengths with the highest efficiency and the quantum output of each wavelength in umol, we can begin to construct an efficient grow light.
    2. How we balance these wavelengths in terms of color regions (red, green, blue) greatly affects the growth rate and overall yield of your plants.
    3. 740nm far red enhances photosynthesis by 30%.
    4. Lights not containing green have less penetrative and therefore absorptive power than the Penetrator spectrum.

    (Part 3): The Proof is in the Grow Tests

    Since 2009 when the first Penetrator models were released, our founder wanted to prove the superiority of her products and scientific theories to the masses. To do this she got onto forums like RIU and began holding competitions to give away lights to growers who would evaluate them side-by-side with a competing product (whether HID or LED). Test after test showed Penetrator LEDs delivering 2-4X the yield per watt of competing LED and HID fixtures. To this day our lights remain undefeated in independent side-by-side tests; which is why we guarantee they will out-yield any competitor or your money back. Now 10 years after our first lights were released, we are back where we started to once again show the world the superiority of the Penetrator brand.

    To prove the theory behind our spectrum, several studies were carried out by independent entities including the University of Washington and a commercial lettuce grower. The results above are from the commercial grower showing lettuce grown under the same light intensity (300-400umol), but with drastically different spectra. Compared to full spectrum white light (HPS, MH, CFL, Plasma and some LED), lettuce under Penetrator LEDs grew at just over twice the rate and weight.


    One of the more widely-publicized grow tests was performed by a Canadian teacher with his students on their youtube channel. This test compared the 300W Diamond Series from Advanced LED to the 320W version of the Penetrator 336X. The end result was 3.7X more pounds of tomatoes from the Penetrator light than Advanced LED.

    There are dozens of side-by-side tests with Penetrator lights throughout the web. One of the more recent was performed by Cannabis Training University with over 1 million followers on Social media. In this test the Penetrator lights delivered nearly 4x the grams per watt of HPS. We could keep posting test after test, but this post is already long enough.

    Now it's Your Turn To Continue Proving Our Superiorty

    In keeping with tradition, it's time to prove once again not just that we have the best grow lights in the world, but just how much better we truly are. So if you're a grower with a competing product (Kind LED, Mars Hydro, Spydr, Black Dog, etc...) who has the space and time to run a side-by-side comparison, please drop us a PM. And if you just want to take advantage of our 120-Day trial with money-back guarantee, use coupon code RIU10 during checkout for 10% off your order (exclusively for RIU members).
    ChiefRunningPhist likes this.

    Moflow Well-Known Member


    zypheruk Well-Known Member

    Never heard of your growlights to be honest so they must be fantastic.

    Kingrow1 Well-Known Member

    To be honest this stuff gets so repetitive that its time to question why you need to sell us lights and not the companies that would relish the perfect PPFD spectral emissions that could see increases in the terms of millions to their profits with your oh so amazing equations.

    Theres a reason HPS works so well - one day you might realize the science but i really doubt it as ive been here for most of this led trauma and every year the same old rubbish which points to profit before common sense.

    ANC, DemonTrich, bk78 and 2 others like this.
    Johnny Lawrence

    Johnny Lawrence Well-Known Member

    $1600 for a 500 watt light? Does it come with free hookers and cocaine?

    WingAK Well-Known Member

    Your killing me smalls!
    Bubblin and Dougnsalem like this.

    zypheruk Well-Known Member

    You know it's bullshit when a company has to reference NASA to try and impress. Good lights speak for themselves.

    Kingrow1 Well-Known Member

    Ironic for NASA to fly all that way up to the sun and then grow underlights - its not rocket science, oh no wait it is for these spaceweed grpwers lol :-)
    zypheruk likes this.

    SSGrower Well-Known Member

    They did ultimately conclude sunlight was best for overall plant health, you wont read that here tho.

    Bookush34 Well-Known Member

    Don’t poke the troll. He’s just hangs around more.

    Budzbuddha Well-Known Member

    Looks like the same Chinese crap components....


    diggs99 Well-Known Member

    I just knew this thread was gonna go well.
    Ryante55, WingAK, Budzbuddha and 6 others like this.
    Johnny Lawrence

    Johnny Lawrence Well-Known Member

    Why not? He thinks that NASA flew to the sun.
    TEKNIK likes this.
    Johnny Lawrence

    Johnny Lawrence Well-Known Member

    What the fuck are these companies thinking dropping 5+ year old led tech on a forum where people talk shit?

    I'd love to see this company post their products in the LED subsection. I'm sure everybody there will agree that their light is undefeated.
    Lordhooha, zypheruk, Psyphish and 2 others like this.

    TEKNIK Well-Known Member

    Why isn't this in the right section for lighting?
    ChiefRunningPhist and zypheruk like this.
    It's not oregano

    It's not oregano Well-Known Member

    Because they would get ripped a new one in there?
    ChiefRunningPhist, diggs99 and TEKNIK like this.

    TEKNIK Well-Known Member

    But the website says that it's proven by NASA and also the best light in the world. I'm not sure how anyone could disagree. It says it on the website so it must be true

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