Light and Agriculture


Light and Agriculture

Indoor Agriculture has been increasingly gaining interest as a means for plant assisted growth using artificial light. This has ramifications for supplemental food production during winter months, especially in regions with short days and reduced sunlight. This technology also has the commercial potential for ornamental plants as well and even perhaps for growing plants 24 hours / day. UPRtek PAR Meter is designed especially for plant growth application, it is using PAR (photo synthetically active radiation) that plants assisted growth with artificial light, and provides PPFD (Photosynthetic Photo Flux Density) measurement unit to help us to discover the research for plants grow and build up the plant growth system.


Photosynthesis and Plant Growth

Plants use Sunlight, Carbon Dioxide and Water to make sugars used to fuel the plant’s activities (e.g. growth, germination) – this is called Photosynthesis. This process can be simplified into 2 steps – Light Reactions and the Calvin Cycle (sometimes called Photo system II & Photo system I).


Photosystems are functional and structural units of protein complexes involved in photosynthesis that together carry out the primary photochemistry of photosynthesis: the absorption of light and the transfer of energy and electrons. Photosystems are found in the thylakoid membranes of plants, algae and cyanobacteria (in plants and algae these are located in the chloroplasts), or in the cytoplasmic membrane of photosynthetic bacteria. There are two kinds of photosystems: II and I, respectively.


Grow Light Measurement

It seems that the plant growth and light are inseparable, and since the light is so important to the growth of the plant. You cannot just check PPFD (Photon Photon flux density), you also need to know the characteristics of the light through the spectrum, check the LUX of the light, and even process a continuous measurement for a period to monitor the plant growth effectively… and so on. UPRtek PAR Meter can help you to accomplish all of them.

PG100N PAR Meter

The burgeoning indoor horticulture industry has resulted in a booming market for Grow Lights. Whether augmenting sunlight or using it as the main source of light energy, the practice and proper usage of Grow Lights will have a significant impact on the appearance, taste and shape of a plant. And there is only one way to practically ensure the quality and quantity of light over a large indoor farming area and that is to use a light meter. But not all light meters are designed with grow lights in mind. The PG100N is geared specifically for grow lights with both spectral and quantitative measurements allowing growers and researchers a tool for getting their arms around the fickle nature of growing plants with artificial lights.

Watch a video about UPRtek PG100N SPECTRAL PAR METER (Eng Sub)

Watch a video about Photosynthesis

Visual Merchandising, LED Lighting Solutions-Handheld Spectrometer

MK350S Premium

MK350S Premium is a Handheld Spectrometer with Muli-Functions in itself. It's not only a Spectrometer, but also can be a Quantum PAR Meter, Blue light Detector and Oscilloscope. The



PG100N Handheld Spectral PAR meter is focused on achieving the demands of agricultural field. It shows its own advantages of measuring functions ,such as spectrum, PPFD and PFD so that users

Lighting measurement system-Handheld Spectrometer

MK350S Advanced

Advanced MK350S the 1st handheld Spectrometer cross to muti-industrials. It had more than 40 light measurement units which are CCT, LUX, CRI, CIE1976, CIE1931,PPF, CQS, Duv, LambdaP, S/P

Handbook Series

The Grow Light Handbook

Everything thing you need to know to get started on Indoor Farming, PAR meters, and Grow Lights  – history, industry, vertical farming, PPFD, types of lights, photosynthesis and more!

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About UPRtek

United Power Research and Technology

UPRtek (est. 2010) is a manufacturer of portable, high-precision light measurement instruments; Handheld Spectrometers, PAR meters, Spectroradiometers, Light Calibration Solutions.

UPRtek HQ, R&D and manufacturing are all based out of Taiwan, with Worldwide representation through our certified Global Resellers.

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UPRtek's partner in China, Quelighting Optoelectronics Co., Ltd, and Plant Growth Chamber Manufacturer Ningbo Jiangnan Instrument Factory will attend the 30th International Conference on Arabidopsis Research (ICAR ) which is being held on June 16-21 at Huazhong Agricultural University in Wuhan City, Hubei Province, China.

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