english: Lux on a tropical reef has been measured to be between 110,000 and 120,000 at the surface and 20,000 to 25,000 one meter below the surface.
non_english: Lux ing terumbu tropis wis diukur antara 110,000 lan 120,000 ing permukaan lan 20,000 nganti 25,000 siji meter ngisor permukaan.