20W LED Electronic Transformer LED driver Power Supply AC220V To AC12V For 12V MR11 MR16 G4 LED Lamp Bulbs Or Halogen Lamp Beads|electronic transformer led|electronic transformerled driver power - AliExpress
20 Watt Warm White MR11 Halogen Dichroic 12V 30 degree
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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
LED MR11 Light Bulbs 2W, 12V 20W Halogen Replacement, GU4 Bi-Pin Base, Daylight White 6000K (Pack of 4) - - Amazon.com
Wickes Non-Dimmable MR11 LED GU4 1.8W Warm White Light Bulb - Pack of 2 | Wickes.co.uk