, Twilight switch , General applications: street lighting and garden lighting, lighting of advertisements, shop showcase, etc. , Used to control lights based on the ambient light intensity , The ambient intensity is monitored by an external sensor and the output is switched according to the set adjustment range on the device , Two light intensity ranges can be set , Zero crossing circuit , Operating voltage: 110V-240V AC , Relay status is indicated by LED , Width: 18mm , DIN rail mounting