LED lighting for greenhouses is an investment that should pay for itself within a few years. LED Lights should improve yields and the quality of output even more in the next few years.
This is a complex topic with numerous subtleties. There is no shortage of arguments in favor of eating locally grown food because of the lower transport costs. Greenhouses allow for a wider variety of fruit and vegetable for a given climate. LEDs give farmers greater flexibility at a lower cost and a smaller environmental footprint.
LEDs can be adjusted to emit light in very specific parts of the spectrum.
Plant physiologists have long known that chlorophyll absorbs mainly in the blue, green and red parts of the spectrum but absorbs a little in the orange and yellow. So it makes sense to produce light only in these parts of the spectrum. That’s easy with LEDs, of course, but impossible with sodium lamps
Arxiv - LEDs for Energy Efficient Greenhouse Lighting
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This is a complex topic with numerous subtleties. There is no shortage of arguments in favor of eating locally grown food because of the lower transport costs. Greenhouses allow for a wider variety of fruit and vegetable for a given climate. LEDs give farmers greater flexibility at a lower cost and a smaller environmental footprint.
LEDs can be adjusted to emit light in very specific parts of the spectrum.
Plant physiologists have long known that chlorophyll absorbs mainly in the blue, green and red parts of the spectrum but absorbs a little in the orange and yellow. So it makes sense to produce light only in these parts of the spectrum. That’s easy with LEDs, of course, but impossible with sodium lamps
Arxiv - LEDs for Energy Efficient Greenhouse Lighting
Read more »
