2PK - GE 20w 12v G4 Bi-Pin Base T3 2750K Halogen bulb – BulbAmerica
Feit Electric 20-Watt 12-Volt T3 JC G4 Bi-Pin Base Dimmable Landscape Garden Halogen Light Bulb, 2800K Bright White (12-Pack) BPLVQ20T3/2/HDRP/6 - The Home Depot
LNKOO 10 Pack G4 LED Light Bulbs G4 Bi-Pin Base 1.5W (20W Halogen Bulb Equivalent) 12V 3000K LED Bulbs for Landscape Ceiling Under Counter Puck Lighting-Clear Cover - Walmart.com