Erik Stappers, plant specialist at Signify, affirms that growing with LED requires different cultivation measures. “Unlike HPS, LED fixtures do not radiate any heat. Especially with full LED, investing in a second screen installation is a logical step to keep the heat inside the greenhouse. We’ve noticed that a lot of our customers are currently either making this investment or considering it, in order to optimize cultivation with LED. At the same time, using full LED also gives you a lot of flexibility as a grower. This is especially the case in the period of March-April when it gets warmer outside. LED barely radiates any heat, which means you don’t have to reduce the light level.”
After three years’ experience using a combination of HPS and LED, Bryte is ready to take the next step. “Lighting isn’t worthwhile at all with the current energy market”, Zwinkels confesses. “Unfortunately, this means that we will be able to harvest less tomatoes coming winter. With the energy prices as they are, we will definitely not turn on all our lighting, but for the lighting which will be switched on, LED is the most efficient and sustainable way.” By equipping the greenhouse with full LED, Bryte can produce more light and save energy. “When all the lights are on full, we will generate over 40% more light.” Bryte has the option to adjust the light intensity in increments of 25%. “This is being driven by the energy market and the desires of our customers.”