Voltage 12, Wattage 20, Base G4, Shape T3, Overall Length (mm) 30, CRI 100, 450012, 12V-20W-HALOGEN BIPIN, Manufacturer: Generic Mentor - S10/SH12 (Bulb Only) - 450012 Replacement Light Bulb - Equipment to Lamp - 450012 -12V-20W-HALOGEN BIPIN - Manufacturer: Generic