Bonlux MR11 LED Bulb 3W 12V AC/DC Low Voltage LED Spotlights,GU4 Bi-Pin Base 25W Halogen Equivalent 270lm for Landscape Accent Recessed Track Lights and Fiber Optics (Warm White 3000K, 6-Pack) - Amazon.com
Osram LED reflector lamp, Base: GU4, Warm White, 2700 K, 3.20 W, for 20 W Reflector lamp, LED SUPERSTAR MR11 12 V [Energy efficiency class A+] : Amazon.co.uk: Home & Kitchen
LED MR11 Light Bulbs 2W, 12V 20W Halogen Replacement, GU4 Bi-Pin Base, Daylight White 6000K (Pack of 4) - Amazon.com