Daily Light Integral (DLI)
DLI
The Daily Light Integral (DLI) is a tool used to measure the total amount of PAR light that the crop receives over the length of a day (mol per day). It is a useful tool to assess the DLI per month in the greenhouse. This allows you to see the difference between summer and winter, as well as other seasons. Using this formula, you can determine how much additional P.A.R. is needed in seasons where your crop performs less. By supplementing with light, you can, for example, achieve the same light levels in winter as in summer. In this video we discuss DLI on a deeper level: https://www.youtube.com/watch?v=XIMFWcLtCTs
DLI (Daily Light Integral) Calculator
The Daily Light Integral is calculated based on the PPFD (light intensity on the crop) and the number of lighting hours. Using our DLI calculator you can calculate how much DLI you receive from your lighting system. You can read more about the application of DLI in greenhouse horticulture in this article. Want to know how much DLI you receive from the sun per month? Contact us and we will be happy to help you further.
New articles
New sensor for growers: Ledgnd and Aranet close the gap in light strategy
During GreenTech 2025, Ledgnd and Aranet jointly launched the Light Spectrum Sensor and its integration into MyLedgnd. In the Hortibiz studio, Ramon van de Vrie (Ledgnd) and Erik van der Made (Aranet)…
Ledgnd announces co-founder Matthea Rijneker as new CEO
Ledgnd, a specialist in data-driven cultivation optimization for the greenhouse industry, has announced the appointment of co-founder Matthea Rijneker as its new Chief Executive Officer. In her new ro…
Knowledge session on plant response to LED lighting in tomato cultivation
Practical insights from Duijvestijn Tomaten During GreenTech Amsterdam, Duijvestijn Tomaten, Agrolux, and Ledgnd are hosting an exclusive knowledge session at the Agrolux stand. In just 20 minutes, we…
Read more
New sensor for growers: Ledgnd and Aranet close the gap in light strategy
During GreenTech 2025, Ledgnd and Aranet jointly launched the Light Spectrum Sensor and its integration into MyLedgnd. In the Hortibiz studio, Ramon van de Vrie (Ledgnd) and Erik van der Made (Aranet)…
Ledgnd announces co-founder Matthea Rijneker as new CEO
Ledgnd, a specialist in data-driven cultivation optimization for the greenhouse industry, has announced the appointment of co-founder Matthea Rijneker as its new Chief Executive Officer. In her new ro…
Knowledge session on plant response to LED lighting in tomato cultivation
Practical insights from Duijvestijn Tomaten During GreenTech Amsterdam, Duijvestijn Tomaten, Agrolux, and Ledgnd are hosting an exclusive knowledge session at the Agrolux stand. In just 20 minutes, we…
Do you want to know more?
Interested in what Ledgnd can do for you? Leave your phone number, and we will contact you as soon as possible for a non-binding informational conversation
