GHL - LED Horticultural Lighting

A variety of abiotic factors (temperature, humidity, carbon-dioxide, etc.) have been traditionally used to stimulate plant growth. Light as an abiotic factor is the new frontier. Each plant variety needs a specific spectrum (wavelength) of light at each stage in its growth – this is known as the Light Recipe. This Light recipe is supplied through controls that can affect intensity, spectrum and programmability. Thus, LED lights can be programmed to provide a specific spectrum on an hour-by-hour basis for the entire length of the grow-cycle (which may be as long as a year from rooting to harvest). These lights can also affect crop mass, shape, composition, colour and taste while inducing resistance to pathogens. The end result is a higher yield, better quality and a shorter grow-cycle.

The same applies to Poultry Lighting for

• Broilers - which is poultry raised for its meat
• Layers - which is poultry raised for its eggs.

There are significant differences between human and avian vision. Human vision is “trichromatic,” based on Red, Green and Blue. Avian vison is “tetrachromatic,” based on Red, Green, Blue and UV-A. Also peak sensitivity wavelengths are different between human and avian vision. Avian vision is very sensitive to flickering as would be experienced for a light functioning at a frequency of 50-60 Hz, while human vision cannot even detect such flickering. Research indicates that performance of the lighting system great influences the bird’s mortality rate, mobility, behavioral patterns, diurnal rhythms, feed efficacy and average weight gain. Thus lighting can greatly affect the productivity of a poultry farm.

Our proprietary lighting system is a true quad wavelength lighting system specifically developed for the poultry industry. It provides LEDs which provide Red, Green and Blue wavelengths, plus UV-A wavelength which provide all the benefits stated above.