20W Halogen Bulbs 20 Watt T3 G4 Base 12 Volt Halogen Light Bulb 20W 12 Volt T3 JC Lamp for Landscape Track Lighting,G4 T3 Bi-Pin Base,Clear,Warm White,Pack of 10 - - Amazon.com
10 Pack 20 Watt 12 Volt Halogen Light Bulbs G4 Base Re-pin 12v 20w T3 Jc Lamps | eBay
G4 LED Bulb, 20W Halogen Bulb Replacement, 2 Watt G4 Bulbs Bi-Pin Base, AC/DC 12 Volt Warm White 3000K, Non-Dimmable, 10-Pack - Walmart.com
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