Agricultural LED lightbar tackles greenhouse applications

October 17, 2012 // By Christoph Hammerschmidt
LEDs do not only illuminate offices, factories and homes, they also are used in the agriculture to stimulate plant growth. For this class of applications, Lumex has developed its new SunBrite Agricultural LED Lightbar. Available in both red and blue wavelengths for diverse plant types and growing cycles, the SunBrite Agricultural LED Lightbar offers significant performance and cost benefits compared to high-intensity discharge (HID) and alternative LED technologies.

According to the vendor, the new technology can generate up to 93% more efficient light absorption, 50% space savings and 80% cost savings compared to some HID technologies. Due to its efficient design, the SunBrite Agricultural LED Lightbar can be up to 20% more compact in size and 20% more cost-effective than competing agricultural LED technologies.

Compared to HID technologies such as metal halide and high pressure sodium (HPS) solutions, LED lightbars offer key performance benefits in the areas of efficiency and ease-of-use for a wide range of agricultural applications including: horticulture, greenhouse, gardening, planting and seeding.

The SunBrite Agricultural LED Lightbar provides significant efficiency enhancements in the areas of light absorption, power consumption and space allocation.

Academic research has demonstrated that optimal light exposure for chlorophyll absorption is obtained when plants are exposed to red (640 to 660 nm) and blue (450nm) light sources. LEDs offer full spectral composition control, ensuring that nearly 100% of emitted light waves are fined tuned to match the absorption wavelengths of chlorophyll compared to HPS technology where only 7% of the light created is absorbed by plants. Because LEDs offer 93% more efficient light absorption than HPS technology, use of fertilizers and other plant food can be significantly reduced, generating cost savings and minimizing the use of chemicals.

LEDs also allow for enhanced efficiency in the area of power consumption as the technology consumes up to 80% less energy than some HID technologies.

Space savings are generated due to the reduced heat output and compact design of the SunBrite Agricultural LED Lightbar. Unlike HPS technologies, LEDs do not require ballasts and also generate up to 75% less heat output, eliminating the need for space-consuming cooling systems and venting and reducing space requirements by as much as 50%.

The operating ease, longer lifespan and ease-of-installation of the new LED lightbars also provide significant performance enhancements compared to alternative technologies.

The SunBrite Agricultural LED Lightbar