Philips 50-Watt MR16 Halogen GU10 TwistLine Dimmable Flood Light Bulb (3-Pack) 415794 - The Home Depot
Linkind GU10 LED Bulbs, MR16 GU10 LED Bulbs Dimmable, 50W Equivalent, 530LM 3000k Soft White Track Light Bulbs, 40° Spot Light Track Light Recessed Light Spotlight, UL Listed, 6 Packs - - Amazon.com
Simply Conserve ENERGY STAR GU10 50-watt EQ 50-Watt EQ LED Mr16 Soft White Gu10 Pin Base Dimmable Flood Light Bulb (100-Pack) in the Spot & Flood LED Light Bulbs department at Lowes.com
Spot sna 2 x 50w, GU10, 230 V, 50Hz, IP44, Cannes, Black/Chrome/nickel TDM - AliExpress