Manual Growing lights
location of the
hive. Depending on the type of greenhouse, this resembles about 60-70 Watt/m2 sunlight outside.
To help them do their job, our general advice [...] pollination time for
bumblebees.
Under optimal light conditions, it takes up to 60-90 minutes for the last foraging bumblebee to return to the
hive. Under low [...] shows that a lot of bumblebees can get lost.
Note: A bumblebee colony can lose all its foraging bees in just 2 hours if the placement advice for
pollination