... decorative lgithing. The specification of Photoelectric (CE approved,light sensor,photoelectric sensor,sensor switch,photocell) as following:Specifications· Nominal Voltages 120, 220 ... -Off<1:4(Electronic) , <1:5(Thermal )· Delay Time(Instant on)3 to 5 seconds· Operating temperature -40 to ... gasketContacts: Hard brass Photoelectric (CE approved,light sensor,photoelectric sensor,sensor switch,photocell)