A 12 volt 100 watt A1/ 231 projector lamp.
For most Super 8 projectors including:
Cinemax Cassette Vision; Eumig Mark 711 , 711R , S 710D; EUROP Super 9-5; Hahnel SANKYO DUALUX 1000; Hanimex I.Q. , DLS I.Q.; Heurtier P6-24 Super 8 , ST42 , ST42 Stereo; IMAC Imac 420 NV; Dual 300 Deluxe; Kodak Instamatic M66; Ektagraphic P120; Magnon IQ; Noris Norimat S & SD; Record 100 & L.100 Record D100; PRINZ (Dixons) Mirage; Cabaret IQ; Quelle Revue Universal 2000H Sound; Rony P100 Super 8; Zeiss Ikon Voigtlander 18-9 Duo , SP8 , P880.