Articles

Growing with LEDs

Publication: 

PARsource

Author: 

Ron James

LEDs have become a popular topic of discussion amongst growers over the past couple of years. As technology has evolved and costs continue to drop, this form of horticultural lighting keeps gaining in popularity with both professional and hobby growers.

Correcting Problems with HPS Lamps

Publication: 

GPN

Author: 

Erik Runkle and Bruce Bugbee

High-pressure sodium lamps are widely used in greenhouse production, but they require maintenance for peak efficiency. After visual inspection, many growers find that some lamps in their greenhouse either aren’t operating or aren’t doing so at full brightness.

The Future of Greenhouse Lighting

Publication: 

GPN

Author: 

Erik Runkle

The high-pressure sodium lamp is the most widely used light source for supplemental lighting in greenhouses. On a relative basis, it is moderately efficient, has a long bulb life and emits light that is rich in orange and deficient in blue and red.

Supplemental Lighting Guidelines for Young Plants

Publication: 

GPN

Author: 

Erik Runkle

The R to FR Ratio

Publication: 

Greenhouse Product News May 2011

Author: 

Erik Runkle

Bright Ideas in the Works

Publication: 

Greenhouse Product News February 2010

Author: 

Erik Runkle and Ryan Warner