Manual Growing lights
blue, green and UV spectrum for foraging, but do
not see in the red light spectrum. Conversely, humans do see in the red light spectrum but also in the [...] greenhouse, this resembles about 60-70 Watt/m2 sunlight outside.
To help them do their job, our general advice is to place the hives as high as possible (above [...] bumblebee hives catch direct daylight
(no filters, screens, etc.). If you do have screens in your greenhouse, for example on the sidewalls, also
take the