Feit Electric BPXN20MR16/GU10/2/RP Xenon 20-Watt Halogen MR16 Bulbs (2 Count Package), 3000K Warm White - Amazon.com
LUXRITE 42-Watt Equivalent PL Vertical LED CFL 2 Pin and 4 Pin Base 26W/32W/ 42W CFL 3 Color Selectable 1450 Lumens (4 Pack) LR24567-4PK - The Home Depot
LED MR16 - 42W Equal - 3000K - Green Creative 36115 - Bees Lighting
Halogen bulb GU10 42W
LUXRITE 42-Watt Equivalent LED PL Vertical CFL 2 Pin and 4 Pin Base 26W/32W/ 42W CFL 3 Color Selectable 1450 Lumens (2 Pack) LR24567-2PK - The Home Depot
Honeyfly 3pcs Gu10 Halogen Lamp Bulb 28w 42w 50mm 220v Cup Shape Halogen Spot Light Grade C Warm White 2700k Gu10 Lamba Dimmable - Spotlights - AliExpress