Red light torch for assessing a strong hive and bearding

[KieranPI]

@Peter48

but they don’t seem to notice the red spectrum of light

Reminds me of a jellyfish in the deepest parts of the ocean, it’s coloured red as predators can’t see it because it’s so faint on the visible spectrum. As bees see in ultraviolet, I’d expect red is near impossible for them to see.