The P6R Core Quattro Colour is a favourite tool. In addition to
normal white light, this robust flashlight provides red light (e.g. for
glare-free night vision), green light (e.g. for wildlife observation) or blue
light (e.g. for tracking) with a maximum runtime of up to 120 hours.
Alternatively, the Multicolour Strobe can be activated, which flashes light in
all four colours.