Maximum Yield USA 2015 November | Page 52

CHOOSING YOUR LED LIGHTING SYSTEM Just 10 years ago, LEDs had yet to find a place in the indoor gardening market. The high price tag, teamed with disappointing results, made most serious gardeners avoid LEDs like the plague. Today, things are much different. Horticultural LEDs have found a solid place in the market and continue to increase in popularity. Much of this has to do with the numerous benefits offered by LED technology. Cooler operating temperatures, longevity and the ability to customize spectral outputs are some of the benefits of using LED grow lights. And there are now many companies offering these lights at an affordable price. The more-affordable price, combined with all of the other benefits of growing with LEDs, has both novice and professional growers turning to LEDs as their primary light source. Unfortunately, it is not always easy to distinguish a good LED lighting system from a bad one. Many variables must be considered when determining the effectiveness of an LED grow light. If you’re hoping to find the best and brightest LED on the market, you will need to take a close look at the components that most affect the lighting system’s efficiency. For example, an HID lighting system has three components that affect the lighting system’s overall performance: the bulb, the ballast and the reflector. An LED lighting system has four components that significantly affect the system’s overall performance: the driver, the lens, the heat-sink and the LED itself. Let’s look at each component in some detail. Photo by Tyler Nienhouse via Flickr “Many variables must be considered when determining the effectiveness of an LED grow light. 50 Maximum Yield USA  |  November 2015