The really bright ones screw with exposure and causes washout. Plus the S2 is more sensitive so it doesn't need as much light.and why is lighter better?
Warm light is daylight. 5000k or so is about daylight. Isn't the S1 higher in color temp (more white/blue)?Also, I'm somewhat confused by Dahua heading down the warm led route. Daylight would surely be the best colour temperature for an LED to maximise colour accuracy and minimise colour cast?