Street light plant, garden, port, airport, farm, park, any other places ..
Compat, reliable light control consists of a hermetic CDS photocell and instantaneous action of a Bimetalic relay to make sure the switching of electrical circuits.
When used for marcury fluorescent lamps, connect the control unit in the primary side of the stabilizer, connect the red wire first security.
For incandescent bulbs, connect the black wire and the white (common) power supply. red wire and white lead to lamp load.