Voltage 12, Wattage 20, Base G4, Shape T3, Overall Length (mm) 31, Life Hours 2000, CRI 100, Color CLEAR, Filament TRANSVERSAL, BBM-MA781, 12V-20W-G4-HALOGEN-UVSTOP, Manufacturer: Swift Swift - M7000D - MA78 Replacement Light Bulb - Equipment to Lamp - BBM-MA781 - 12V-20W-G4-HALOGEN-UVSTOP - Manufacturer: Swift