Historical
ISO 9680:1993
Dental operating light
The preferred voltages are: 12; 24; 36; 48; 72; 80; 96; 120; 144; 160; 192; 240.
International Organization for Standardization [iso]
The preferred voltages are: 12; 24; 36; 48; 72; 80; 96; 120; 144; 160; 192; 240.