Thanks. However, I'm still confused:
DS-2CD2142FWD-IS on the Hikvision U.S. website has "0.028 lux @ (ƒ/2.0, AGC on)" (DS-2CD2142FWD-IS(B)-Hangzhou Hikvision Digital Technology Co. Ltd.),
while DS-2CD2142FWD-IS on the Hikvision Europe website has "0.01Lux @ (F1.2, AGC ON)" (Hikvision Europe)...