Beyond Lux: methods for species and photoreceptor-specific quantification of ambient light for mammals. - McDowell, Richard J.; Didikoglu, Altug; Woelders, Tom; Gatt, Mazie J.; Moffatt, Finn; Notash, Saba; Hut, Roelof A.; Brown, Timothy M.; Lucas, Robert J. (BMC Biology, 2024)