50 Watt 12 Volt GY6.35 T4 Halogen Light Bulb – Green Electrical Supply
Anyray (5-Pack) 50W Halogen 50 Watt 120 Volt JCD Type G6.35 Bulb - Amazon.com
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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