... switch,CE approved,The specification of photoelectric switch(sun switch,light switch,photocell,photoelectri switch,photocell) ... or phototransistor (Hermetically sealed Cds,)· MaterialsCover: Polypropylene UV stabilized,High impact, flammability resistance Base: Heat resistant ... phenolic with moisture resistant gasketContacts: Hard brass Sun switch,daylight switch,photocell,sunshine switch,photo electric ...