From: The melanocyte photosensory system in the human skin
UV
K
30s
60s
90s
120s
3.3 eV
6.58 × 10-7 J
13.6 × 10-7 J
19.74 × 10-7 J
26.32 × 10-7 J
½ h
2 h
3½
6 h
UV 120 s