PHILIPS 458539 20W Equivalent Bright White (3,000K) MR11 LED Flood Light Bulb, 1 Count (Pack of 1) - - Amazon.com
PHILIPS Halogen Bulb: MR11, 2-Pin (GU4), 20 W Watts, 215 lm, Halogen - 492Z34|20MRC11/FL30 PRO FTD 50PK - Grainger
Replacement for Philips 6435/fr by Technical Precision - MR11 12V 20W Light Bulb with BA15D DC Bayonet Base - 3000K Soft White Frosted Elevator, Stage Studio Bulb - 1.6 Inch Overall Length - 1 Pack - - Amazon.com
Philips Mr11 12v20w Gu4 30° Halogen Bulb Essential Dichroic Reflector Spot Light for sale online | eBay