Table 1.

List of conducted experiments and the associated light exposure conditions. (UVA light level was set to match the same number of integral photons s⁻¹ m⁻² as was used in the blue light spectrum as there was very little UVA light present in the animal facility to obtain useful measurements. The labelling code used in the ‘description’ column is as follows. Mu or S (light colour, intensity, no. of days in experiment): Mu, mu-metal box; S, sham box; W, white light; G, green light; Y, yellow light; R, red light; B, blue light; UVA, ultraviolet A light; D, dark; Ø, no light.)

exp no. (figure no.)	description	animals	wavelength (nm)			intensity (photons s−1 m−2)		% ambient
			peak	FWHM	integral	peak	integral
exp 1a (figure 3a)	Mu(W,100%,5d)	28	460	n.a.	420–740	2.28×1016	1.87×1018	100
	Mu(W,66%,5d)	28	460	n.a.	420–740	1.51×1016	1.23×1018	66
	Mu(W,33%,5d)	28	460	n.a.	420–740	7.52×1015	6.17×1017	33
exp 1b (figure 3b)	Mu(W,100%,10d)	14	460	n.a.	420–740	2.28×1016	1.87×1018	100
	Mu(W,66%,10d)	14	460	n.a.	420–740	1.51×1016	1.23×1018	66
	Mu(W,33%,10d)	14	460	n.a.	420–740	7.52×1015	6.17×1017	33
exp 2 (figure 4)	S(W,100%,5d)	14	460	n.a.	420–740	2.28×1016	1.87×1018	100
	S(G,158%,5d)	14	515	38	480–570	2.64×1016	1.08×1018	158
	S(Y,103%,5d)	14	590	15.59	560–620	3.23×1016	7.53×1017	103
	Mu(W,100%,5d)	28	460	n.a.	420–740	2.28×1016	1.87×1018	100
	Mu(G,158%,5d)	28	515	38	480–570	2.64×1016	1.08×1018	158
	Mu(Y,103%,5d)	28	590	15.59	560–620	3.23×1016	7.53×1017	103
exp 3 (figure 5)	S(W,100%,5d)	14	460	n.a.	420–740	2.28×1016	1.87×1018	100
	S(R,170%,5d)	14	635	20	595–670	3.79×1016	1.09×1018	170
	S(B,106%,5d)	14	465	25.46	410–520	1.58×1016	4.36×1017	106
	Mu(W,100%,5d)	28	460	n.a.	420–740	2.28×1016	1.87×1018	100
	Mu(R,170%,5d)	28	635	20	595–670	3.79×1016	1.09×1018	170
	Mu(B,106%,5d)	28	465	25.46	410–520	1.58×1016	4.36×1017	106
exp 4 (figure 6)	Mu(D,Ø,5d)	20
	Mu(B,51%,5d)	20	465	25.46	410–520	7.52×1015	2.08×1017	51
	Mu(B,106%,5d)	20	465	25.46	410–520	1.58×1016	4.36×1017	106
	Mu(B,251%,5d)	20	465	25.46	410–520	3.74×1016	1.03×1018	251
	Mu(UVA,103%,5d)	20	405	11.93	385–435	2.02×1016	4.23×1017	103
exp 5 (figure 7)	Mu(D,Ø,5d)	30
	Mu(B,6.2%,5d)	30	465	25.46	410–520	9.40×1014	2.60×1016	6.2
	Mu(B,12.5%,5d)	30	465	25.46	410–520	1.88×1015	5.19×1016	12.5
	Mu(B,25.2%,5d)	30	465	25.46	410–520	3.76×1015	1.04×1017	25.2
exp 6a (figure 8a)	Mu(D,Ø,5d)	30
	Mu(B,6.2%,5d)	30	465	25.46	410–520	9.40×1014	2.60×1016	6.2
	Mu(B,9.3%,5d)	30	465	25.46	410–520	1.41×1015	3.90×1016	9.35
	Mu(B,12.5%,5d)	30	465	25.46	410–520	1.88×1015	5.19×1016	12.5
exp 6b (figure 8b)	Mu(D,Ø,10d)	30
	Mu(B,6.2%,10d)	30	465	25.46	410–520	9.40×1014	2.60×1016	6.2
	Mu(B,9.3%,10d)	30	465	25.46	410–520	1.41×1015	3.90×1016	9.35
	Mu(B,12.5%,10d)	30	465	25.46	410–520	1.88×1015	5.19×1016	12.5