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Complete the form to get your quote from a LI-COR representative.

Request a Quote for the LI-180 Spectrometer

LI-180 Spectrometer


Plant growth and reproduction are driven by photosynthetically-active radiation (PAR), which occurs at wavelengths between 400 and 700 nanometers. This interval covers three distinct “color” bands of light, and modifying the intensity of these red, blue, green wavelengths, and additional near-UV (380-400 nm) and far-red (700-780 nm) bands can provide control over a variety of plant characteristics.

The precision linear image sensor of the LI-180 captures 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 and plan for seasonal changes or upgrades.

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Why Measure Spectra?

Gain enhanced control of desired plant characteristics by accurately measuring and optimizing the composition of your supplemental light.1,2


Shorten Production Time

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

healthy growing plant

Improve the Quality of Your Yield

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.

diseased leaf

Enhance Disease Resistance

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

Why Choose the LI-180 Spectrometer?

The LI-180 provides precise, portable spectral measurement technology with flexible software options ideal for a greenhouse grower always on the move.

data screens

One-Click Data Capture

Get actionable insights in seconds. Collect multiple captures to measure changes from spectral manipulation, height adjustments, and plant positioning changes in real-time. With a single click, the LI-180 captures dozens of parameters including PAR (as color-specific photosynthetic photon flux density (PPFD)), photon flux density (PFD), irradiance (W/m2), and more.

Instantaneous Results

Quickly deploy your light recipes and adapt your dynamic lighting strategy for species-specific responses across your greenhouse with instantaneous spectral feedback. View a variety of tabular and graphical outputs immediately after capture and create custom views to see your variables of interest.

man taking measurements with the LI-180
LI-180 in-hand

Superior Portability

Measure your light sources from a variety of angles in and around your plants to optimize spacing and distance of supplemental light. The full functionality of the LI-180 is contained within the compact, lightweight instrument that fits in the palm of your hand. Save your data to a high-capacity SD card or transmit data files via email from the mobile application.

LI-COR Support

Experienced support staff with diverse backgrounds in horticulture, plant physiology, and other fields are readily available to provide support in your use of LI-COR instrumentation.

two researchers in greenhouse

How Does It Work?

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

Read more about cosine correction and other principles of light measurement

cosine response chart of LI-180

The precise cosine response of the LI-180 allows for accurate indoor measurements with multiple direct and indirect light sources.

cell phone with LI-180 data

Software Options

The LI-180 features multiple software options for flexibility and performance.

Desktop Software

Configure continuous or timed capture and visualize your spectrometer data from within the desktop software.

Mobile Applications

Available for iOS and Android mobile operating systems. Use your smart phone or tablet for instantaneous measurements and transfer data between your email and LI-180 spectrometer.

LI-180 Spectrometer

LI-180 Specifications

  • Wavelength Range: 380 to 780 nm
  • Wavelength Data Increment: 1 nm
  • Spectral Bandwidth: Approximately 12 nm (half-bandwidth)
  • Measurement Range:
    • 70 – 150,000 lx (lux)
    • 0.5 – 1,000 W/m2 (irradiance)
    • 1 – 3,000 μmol m-2 s-1 (PPFD)
  • Display: 3.5" 320 × 420 Resistive Touch LCD
  • Storage Capacity: 68,000 files (for 8GB SD card)
  • Battery Life: 5 hours typical with continuous operation
  • Power Requirement: Adapter, 2500 mAh (3.7V rechargeable lithium ion battery)
  • Data Output Interface: SD Card (SD2.0, SDHC, up to 32GB (8GB card included)), Mini USB Port (USB 2.0), WiFi SD Card (compatible with iOS and Android)
  • Data Output Format: .xls, .jpg

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LI-180 Spectrometer Resources

  • docReferences
  1. Olle, M., & Viršile, A. (2013). The effects of light-emitting diode lighting on greenhouse plant growth and quality. Agricultural and Food Science, 22(2), 223-234.
  2. Ouzonis, T., Rosenqvist, E., Ottosen, C. (2015). Spectral Effects of Artificial Light on Plant Physiology and Secondary Metabolism: A Review. HortScience, 50(8), 1128-1135.