Christoph Schubert, CEO of COMPLED Solutions GmbH, discusses how light is one of the most important factors in the professional cultivation of medical cannabis.
For many decades, few solutions were available. One method involved the use of both metal halides (MH) and fluorescent lamp technology for the propagation and the vegetative phase combined with high-pressure sodium (HPS) for the flowering phase. Another method that has become widespread in recent years is the use of ceramic metal halide (CMH), as this technology provides for sun-like lighting.
Since the middle of 2018, LED technology has been increasingly gaining a foothold in the professional cultivation of medical cannabis. The reason for this lies not only in the significant efficiency increases thereby achieved but also a considerable easing of the price-performance ratio.
The problem with the ongoing debate on the subject of professional plant lighting, however, is that it is currently almost exclusively limited to the topic of energy efficiency. In the following chapters, we attempt to put this debate on a firmer footing.
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