... specification of Photoelectric (CE approved,light sensor,photoelectric sensor,sensor switch,photocell) as following:Specifications· Nominal ... (Instant on)3 to 5 seconds· Operating temperature -40 to +70(-40F to +158F)· ... High impact, flammability resistance Base: Heat resistant phenolic with moisture resistant gasketContacts: Hard brass Photoelectric (CE approved,light sensor,photoelectric sensor,sensor ...