Feit Electric 20-Watt Bright White (2800K) T3 G4 Bi-Pin Base Dimmable Landscape Garden Halogen Light Bulb (2-Pack) BPQ20T3/2/HDRP - The Home Depot
50 Watt Equivalent Tesler 4W LED Dimmable 12 Volt G4 Bulb - #71R30 | Lamps Plus
G4 LED Bulbs 12V 20W Halogen Bulb Replacement, HengBo G4 Bi Pin Base JC Type T3 Light Bulb Warm White 3000K for Under Cabinets Home Lights, Non-Dimmable, (Pack of 10) - Amazon.com
halogen 12 volt lamps - Specialty Lighting
Apex G4 Halogen Bulb for Marine or Residential Lights