Hettich Benelux Plant Research Cabinets (PRC) use dimmable, broad spectrum white LEDs that are close to the light spectrum of sunlight. In addition to the white LEDs, far red LED lighting can also be switched on. Thanks to the minimal heat generation of the shelves, there is a better and more stable temperature homogeneity in the cabinets. Lower cooling capacity results in low energy consumption. Due to homogeneous light coverage of the effective work surface, there are no 'dark corners' and so all shelf area can be used for growth.