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
Gu5.3 G4 Lamp Base Adapter | E14 Mr16 Base Adapter | E14 Mr16 Lamp Holder - 4pcs E14 - Aliexpress
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E-Simpo 10PCS E26 to Gu5.3/GU4/G4/MR16 Adapter- Standard E26/E27 Edison Screw Base to MR16 GU5.3 G4 Gu4 Base Adapter Holder Converter (PBT Material)
Sealed halogen light bulb, 12 V 50 Watts, MR16, GU4 base | eBay
Satco 7W 3000K GU4 MR16 Non-Dimmable LED 40 Degree Beam
E-Simpo® 6pcs E14 to MR16/Gu5.3/G4/Gu4 Adapter EU Candelabra Base E14 to MR16 Spotlight Bulb Base Holder Socket Converter,Ceramic, Make Sure The MR16 Lamp Working Voltage is The Same as E14 Socket - -
ALIDE MR11 GU4 Led Bulbs 6000K Daylight Cool Bright White 3W,Replace 20W 35W Halogen Equivalent,12V MR11 GU4 Low Voltage Bulb Spotlight for Outdoor Landscape Track Lighting,Not Dimmable,30 Deg,6 Pack - - Amazon.com
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10pcs New 5w Dimmable/no Dimmable Mr11 Mr16 Gu4 E27 Cob Led Spot Lamps Free Shipping - Led Bulbs & Tubes - AliExpress
MR16 (GU5.3) MR11 (GU4) & G4 Low Voltage Bulb Holder - BrightOn LED lighting