Makergroup MR11 Gu4.0 Bi-pin LED Light Bulb 3W 12VAC/DC Low Voltage LED Spotlights Warm White 2700K-3000K for Outdoor Landscape Lighting and Indoor Recessed/Track Lights 2pcs - Amazon.com
BA15S BA15D to G4/GU4/GU5.3 Socket Adapter Converter
Finding your way around lamp fittings | dmLights Blog
Simba Lighting LED MR11 3W 20W Halogen Replacement Light Bulbs 12V GU4 Bi-Pin 3000K Soft White 10-Pack - Walmart.com
Amazon.com: BAOMING MR11 GU4 LED Bulb 20W/35W Halogen Replacement Equivalent 12V AC/DC 2700K Warm White 30° 10-Pack : Everything Else
DEMASLED 5-Pack Mini Bi-pin Socket Led Light mr11 mr16 Halogen Bulbs Base lamp gu5.3 g4 gu4 gu5.3 gu6.35 gy6.35 gx5.3 gz4 - Amazon.com
Kichler 40-Watt EQ MR11 Warm White Gu4 LED Light Bulb in the General Purpose LED Light Bulbs department at Lowes.com
Feit Electric 20-Watt Equivalent MR11 GU4 Bi-Pin Dimmable 12-Volt Track Lighting 90+ CRI LED Flood Light Bulb, Bright White BPFTD/930CA - The Home Depot