Fits Diamon, Pertrix, Berker, Zeiler, Crone, Have, Hasia, Perlux, Nirona (Germany), WIF Signal (Austria), Vigila, Zenit, Iride (Italy), Palaba (Czechoslovakia), Tytan, Elektrodyn, 10 Godzin, Granat (Poland), Wonder (France), No.4 (England), most Soviet torches and other vintage models. Each light bulb has been tested and is guaranteed 100% working!