BAY15D male to GU4.0 GU5.3 female - Converters - LEDLight
Multifaceted reflector - Wikipedia
Feit Electric 25-Watt Equivalent MR11 GU4 Bi-Pin CEC 12-Volt Landscape Garden LED Light Bulb, Bright White 3000K (6-Pack) BPLVMR11830CA/HDRP/6 - The Home Depot
Mini GU4 LED Spot light Bulb 5W COB AC220V 35mm MR11 Led Bulb Lamp GU10 GU5. 3 Led Corn Lamp Lampada Energy Saving LED Lighting|led energy saving|led lightled light spot bulbs - AliExpress
2Pk - Satco 2w 12v MR11 LED Bi Pin GU4 Flood 100 Lumens 3000k Warm Whi – BulbAmerica
ALIDE MR11 GU4 Led Bulbs 3000K Soft Warm White 3W, Replace 10W 20W 35W Halogen Equivalent,12V MR11 GU4 Low Voltage Spotlights for Outdoor Landscape Flood Yard Track Lighting,Not Dimmable,30 Deg,6 Pack - -
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