LI-180 Spectrometer Description：

Product Manual

Plant growth and reproduction are driven by photosynthetically active radiation (PAR), defined as wavelengths between 400 and 700 nanometers. This interval is often separated into three distinct “color” bands for plant research. Modifying the intensity of red, blue, green wavelengths, along with additional near-UV (380-400 nm) and far-red (700-780 nm) bands, can influence a variety of plant characteristics, such as growth rate, chemical composition, and more.

The precision linear image sensor of the LI-180 records intensity and composition of these five wavebands at the single-nanometer level with a single click. Optimize the composition of your supplemental lighting and track your spectrometer data over time for long-term validation of your lights and lighting strategy. Monitor degradation of your custom lighting system, plan for seasonal changes or upgrades, and design species-specific light recipes using the LI-180 Spectrometer.

Why Measure Spectra?

Gain enhanced control over desired plant characteristics by accurately measuring and optimizing the composition of your supplemental light1,2.

Shorten Production Time

Modifying specific wavebands can accelerate growth, increase total fruit and vegetable yield, influence flowering, and increase maximum harvestable biomass of leafy greens and herbs.

Improve Yield Quality

Strategically modifying the spectral composition of your lights can improve the taste, nutrient content, and chemical composition of your fruits, vegetables, leafy greens, and herbs. Spectral changes can also affect stalk, leaf, and flower growth and distribution for ornamental plants.

Enhance Disease Resistance

Increasing specific wavelengths of light can inhibit the growth of, and minimize the damage from, mildew and other diseases common among greenhouse plants.

Character

The LI-180 combines precise, handheld spectral measurements with a polished and powerful interface ideal for the greenhouse grower on the move.

Instant Insights

Measure real-time changes from spectral manipulation, height adjustment, and plant positioning. In one click, the LI-180 records dozens of variables including PAR (as color-specific photosynthetic photon flux density (PPFD)), photon flux density (PFD), irradiance (W/m2), and more. Select a measurement to see details, such as ratios of red to blue or red to far-red intensity.

Actionable Results

Compare the spectra of your lighting to one of multiple reference spectra. Reference spectra are based on pigments important for photosynthesis and morphology, such as chlorophyll a or beta carotene. Then adjust your lighting strategy to better match the pigment peaks for species-specific responses throughout your greenhouse.

Superior Portability

Measure spectral output from any angle in and around your plants to find optimal spacing and height of supplemental lighting. The full capability of the LI-180 is within a compact, lightweight design that fits in the palm of your hand. Save your data to a high-capacity SD card or transfer data files via email from the mobile application.

Custom Experience

Measure specific wavebands of interest and view the results in tabular and graphical outputs immediately after capture. Create custom wavebands and ratios to focus on the light ranges you want. Determine which bands of light have the highest intensity from your lighting strategy.

Reliable Support

LI-COR support team members are experienced and knowledgeable with diverse backgrounds in horticulture, plant physiology, botany, and other fields. Our team is readily available to support you in the use and care of LI-COR instruments.

Working Principle

The LI-180 Spectrometer features a precise CMOS linear image sensor that measures photon flux density (PFD) over a 12 nm bandwidth. PFD measurements are reported in 1 nanometer increments between 380 and 780 nm. The LI-180 sensor measures with a precise cosine correction response for accuracy across the field of view.

LI-180 Spectrometer Specifications：