Bad lights stops play.
The visual performance of cricket batsmen is simulated over a wide range of ambient illumination. When illumination falls to the level at which they usually stop batting (the gloom level) a rapid increase in reaction time commences. It is also the level at which office and car sidelights are turned on and the sensation of "gloom" occurs.
Campbell
F W
FW
Physiological Laboratory, University of Cambridge, U.K.
Rothwell
S E
SE
Perry
M J
MJ
D000328:Adult; D001334:Automobile Driving; D005260:Female; D006801:Humans; D008029:Lighting; D008297:Male; D008875:Middle Aged; D011930:Reaction Time; D013177:Sports; D014785:Vision, Ocular / Q000502:physiology*