defining the

SCIENCE

of grow technology

PhotosynthesisPARLEDTSR Cooling Technologyumol/JPPFDEfficiencyPPFFertigationPhotomorphogenisisWATTRemote HV/DC ServersLumensHPSEfficacy

Photosynthesis

Photons to Sugars

From the greek "phos," meaning "Light," and "Synthesis" meaning "to put together," photosynthesis is the process by which plants put light and nutrients together to form the energy to grow. This energy is temporarily stored in carbohydrates.

As a bi-product of photosynthesis, plants take carbon dioxide, combined with water to create the oxygen we humans breath.

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Photomorphogenisis

How much of the light you produce is usable to drive photosynthesis.

If PAR is the kind of light that drives photosynthesis, Efficacy is the measurement, in μmol/s, of that PAR being generated from a source. To be more precise, efficacy measures the amount of usable photons (light) per second that your crops are receiving from your lights.

Often, people will compare Lumens, Watts or LUX to see how effective the potential lighting product will be. When dealing with full spectrum applications, it is important to go beyond just the power of the system. This is why we often talk about efficacy, and with TSRGrow's fixtures putting out up to 3 μmol/s, we are at the top of the charts.

Efficacy

Photosynthetic Active Radiation

Lights emit light. Light is visible, sometimes. Humans can see light when it's bright or powerful, but we also can only see it when it's in the visible spectrum. We don't see red or blue as well as all the other colors because they exist at the edge of the spectrum. Photons exist with all light wavelengths, but we really only use them to see when they are playing in the parts of the spectrum we like. Plants are the same way, only kind of the opposite.

Most plants really, really like the blue and red parts of the visible spectrum. That's why when we think of full spectrum lighting and horticulture, we talk about full plant spectrum. PAR isn't so much of a metric as it is a type of light that a certain crop thrives in. There are several metrics involved with PAR, including Photosynthetic Photon Flux (PPF) and Photosynthetic Photon Flux Density. To learn more about them, click on them above!

PAR

Photosynthetic Photon Flux

Don't fear, Gaussian spheres are here! PPF is the measurement of how many photons pass through an integrated sphere per second. This is closely related to Efficacy and PPFD; they differ by how they deal with their measurement of the PAR of an emitting fixture.

It is important to note, although many people tend to skip the importance of PPF of a fixture. PPF is very handy when trying to understand how good a light is at producing light plants can use, or grow terms PAR. In short, PPF tells you how much PAR a light can generate.

PPF

Photosynthetic Photon Flux Density

While PPF is a general measurement of PAR generation of a light, PPFD is an environmental measurement. PPFD is the amount of usable light -PAR - that falls on a plant in a given environment. Where the measurement of PPF, μmol/s, measures only photons and time, PPFD incorporates area as well, denoted by its units μmols/s per square meter or μmol/m2/s.

Because PPFD is a measurement taken at a certain point, it is essential to be very detailed in the documentation. First, PPFD is really only valuable when many points are taken and an average is created with min/max values established. These values can change by including additional or different fixtures and changing their distances to the crops, so area demarcations is also important in these readings. Pay attention to what your specific area needs and reach out to us if you if you are having trouble!

PPFD

Light Emitting Diode

These days, LEDs are everywhere from our cars to homes to flashlights to space. They can do a lot when dealing with energy, which is why TSRGrow leaves other lighting solutions alone and specializes in LED solutions. Because of their electrically DC nature, they are easily dim-able and modular, can be manipulated to produce specific wavelengths and last a long, long time.

Often, light efficiency measurements are taken in comparisons of Watt output so they can calculate their electrical bill for a production period. It's an important thing to know, but in the case of LEDs its far more important to look at the entire system, as any LED can only perform as well the system that drives it. Therefore, you should look at Watt INPUT and compare that with the Efficacy measurements such as PPF and PPFD to understand how much energy you have to consume to create the correct output.

LEDs

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HPS

Photon Efficacy related to Watts and Power

If efficacy's measurement is PPF with units μmol/s, and Watt's units are J/s, the seconds cancel out leaving us with a measurement of how many usable photons our fixture creates per Joule of energy that it consumes. This is the metric you want to be on the look out for, so we put it in bold below:

µmol/J

This will give you the power to calculate some awesome yield margins.

Efficiency

Thermal Management redefined:

Lights produce heat, electricity produces heat, management tools create heat... TSRGrow's cooling technology solves all of these problems.

Somewhere between the remote power servers and the passively cooled, highly efficient LEDs there's a TSRGrow environment that has every element specifically tuned to grow your horticultural adventure as big as you want.

TSRGrow Cooling Technology

Humans like Lumens, Plants like photons.

Lumens is a measurement of the brightness of a light according to the human eye. Plants don't have eyes, and they don't really even use the light we see. Make sure that when you compare lights, you aren't using measurements that aren't related to your plants.

Lumens

Nutrient Delivery Systems

Combine Irrigation and Fertilization and you get Fertigation! Whether you have a multistage grow in a vertical hydroponic greenhouse or a micro green farm in your kitchen, or a grow tent in your closet, your plants need nutrients. Fertigation integration systems allow for systematic scheduling and automation.

The TSRGrow Master recipe allows for advanced, zoned fertigation, as well as data retention to keep track of all the nooks and crannies you feed to your plants. This includes irrigation folks, that's where we started.

Fertigation

The horticultural measurement of efficiency

When dealing with a regular light bulb's efficiency, we look at Watts and kW/hr eventually shows up on your electric bill. But as growers have noticed, there is little to no correlation between increased Watts and increased yield. That's why we look at thing like PAR, PPF and PPFD to end up with a metric called Photon Efficiency.

Photon Efficiency

umol/J

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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

WATT

High Voltage Direct Current

Each of the TGHV remote servers has a 3000 W potential output and can provide power relatively any distance away from your grow area. The TGHV units are fully tunable from 0-1000W per unit and can drive fixtures in series for modular setups. They can provide up to 250V DC, which is again, high voltage, to provide all the energy your plants need.

Remote HV DC Servers