Lighting

Indoor Propagation

We use greenhouses primarily to regulate the environment inside, creating conditions suitable for plant growth most or all of the year. However, greenhouses are still subject to weather conditions and daily and seasonal changes in... more »

New DLI App Available

A new web app is available to calculate the light intensity and photoperiod required to achieve a certain daily light integral for plant growth for an electric light source, such as LEDs (light-emitting diodes). In... more »

How Much Could Hemp Benefit from Supplemental Light?

While hemp may not be the cash crop many growers initially thought it would be, there are growers who are looking for ways to make it a profitable one. Numerous universities across the country are... more »

New Online DLI Calculator Available

SunTracker Technologies has developed a web-based free online calculator to predict monthly daily light integral (DLI) values for anywhere in the world, based on climate-based Typical Meteorological Year (TMY) weather records from over 2,100 weather stations worldwide.... more »

GLASE to Present Lighting Webinar

"Lighting Approaches to Maximize Profits" will be the subject of the latest webinar from Greenhouse Lighting and Systems Engineering (GLASE). Mark can Iersel, professor at the University of Georgia, will present the free one-hour webinar on April... more »

What Is the Ideal Lighting Spectrum?

One of the most common questions I am asked is, “What is the ideal lighting spectrum?” Until the recent advances in light-emitting diode (LED) technology, this wasn’t something we would even consider asking. We only... more »

GLASE to Present Lighting Webinar This Week

GLASE (Greenhouse Lighting & Systems Engineering) will present a free webinar this week on Horticultural Lighting Systems Energy-Savings Calculations. The webinar will take place Feb. 20, at 2 p.m. eastern time In controlled environment agriculture supplemental lighting... more »

Fluence Names Hort Services Head

Fluence by OSRAM (Fluence) has appointed Abhay Thosar to director of horticulture services. Thosar, who previously served as senior plant specialist with Signify (formerly Philips Lighting), brings deep horticultural experience and applied expertise in horticultural... more »