LUXRITE 50-Watt Halogen Equivalent MR16 Dimmable GU10 Base LED Light Bulbs Enclosed Fixture Rated 4000K Cool White (16-Pack) LR21502-16PK - The Home Depot
12V MR16 Small Dimmable LED Light Bulbs from Lumilum
Feit Electric 50-Watt Bright White (3000K) T4 Mini Candelabra E11 Base Dimmable Halogen Light Bulb BPQ50/CL/MC/HDRP - The Home Depot
Utilitech 50-Watt EQ PAR38 Soft White Medium Base (e-26) Dimmable Halogen Light Bulb (2-Pack) at Lowes.com
Philips LED 415745 Indoor Flood 50-Watt MR16 GU10 Base Light Bulb - Halogen Bulbs - Amazon.com