181 201-5 is a two-system locomotive for 16 2/3 Hz, 15 kV AC (DB; Germany) and 50 Hz, 25 kV AC (CFL; Luxemburg and SNCF; France).The engine is the last one painted in blue.
181 211-4 is a two-system locomotive for 16 2/3 Hz, 15 kV AC (DB; Germany) and 50 Hz, 25 kV AC (CFL; Luxemburg and SNCF; France). It was the last engine in turquoise beige color scheme.