LEDs lend hand to crop growth
Horticulture applications are the target of a selection of LUXEON LEDs from Lumileds that are in stock at RS Components. The LUXEON SunPlus 2835 series has been purpose-built to enable ease of system design in horticulture applications and is engineered to deliver the precise wavelengths of light required to improve crop yield, either by complementing or potentially replacing natural sunlight.
The LEDs have been binned and tested to maximise photosynthetic photon flux (PPF), which determines the amount of photosynthetically active radiation (PAR) provided by a light source each second.
PAR is a key parameter used by gardeners and other operators at indoor and greenhouse farming installations to monitor artificial lighting systems.
The series offers PPF/watt measurements from 1.84 for one of the purple LEDs (with 2.5% blue), up to 2.32 for the ‘deep red’ and ‘far red’ LEDs, specified at 120mA current flow and a device junction temperature of 25°C.
Other colours available with varying levels of PPF/W, include: two further purple LED types – integrating 12.5% or 25% blue – along with royal blue, lime, and horticulture white.
Available in packages measuring 2.8 x 3.5mm, the LEDs provide a 120° light-distribution angle to deliver uniform light in greenhouse applications, and include options for single LED-driver systems, as well as multi-channel and colour-tuneable solutions.
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