3mm RED LED indicator by IMO. Package: Black recessed plastic Bezel Dia.: 7.0mm (*), Thread: M6 x 0.75 Fascia mounting hole: 6.1mm LED: Vf (Typ): 2V , Cathode: short lead Status: NOS (New Old Stock) RoHS compliant: YES note(*) under bezel is a 8mm Dia. x 1mm metal washer increasing bezel heigh to 4mm. note: these are almost identical to later TruOpto items