UNICO Bulb 12 Volt / 30 Watt Halogen G4 Pin. This 12 volt 30 watt Halogen Light Bulb from UNICO is a great way to make sure you can light up any room desk or lab space. For a great way to make sure you are working with some of the best UNICO has to offer choose the UNICO 30 watt Bulb w/ 12 Volt Base. Specifications for UNICO Replacement Microscope Bulb for IV950 series: Works with: UNICO IV950 Microscopes Features of UNICO 12 Volt / 30 Watt Halogen Bulb G4 Pin for IV950 series: Replace aged stage light bulbs Halogen bulb Package Contents: UNICO 12 Volt / 30 Watt Halogen Bulb G4 Pin for IV950 series IV950-7001