GreenSun LED Lighting MR11 GU4 3 W 12 LEDs 2835SMD LED Spotlight Bulb Spotlight Light Bulb AC/DC 12 V 180 Lumen Warm White 3000-3500 K Pack of 10 : Amazon.de: Lighting
Socket G4 - G, 35 MR16 GU4 for LED and halogen bulbs 12 V with cable and socket holder : Amazon.de: Lighting
AGOTD GU4 MR11 12V LED Bulbs : Amazon.de: Lighting
Allesgute GU4 LED Bulbs 5 W, MR11 LED Spot Light Bulb Spotlight Light 12 V AC/DC, 35 mm Diameter, 400 lm, Neutral White, Non-Dimmable, LED Bulbs, LED Bulbs, Set of 4 :