Westinghouse 20-Watt Halogen MR11 Clear Lens Low Voltage GU4 Base Spot Light Bulb 0474800 - The Home Depot
4pcs LED MR11 Light Bulbs, EEEkit 3W 12V LED MR11 Flood Light Bulbs Equivalent to 20W Halogen Bulbs, GU4 Bi-Pin Base for Landscape Accent Lighting, 3000K Soft White - Walmart.com