Two-circuit Photocell Control

In some installations, combining more than one control method provides the best solution. A twilight sensor switches lighting according to actual ambient light, while a time switch can limit operation during quieter hours.

Benefits include partially switching off public lighting during periods of low use, such as midnight to 4 a.m., better adaptation to real conditions, and basic operation if one device fails. PRVO 2 enclosures combine a twilight sensor with a time switch. When set correctly, all outputs switch on after dusk, one group switches off at a set time, the same group switches on again later, and all outputs switch off after dawn. This helps reduce lighting costs through accurate switching and a scheduled partial off period.

Learn more about common public lighting control methods.