Modee Lighting LED Spot Alu-Plastic 4,5W GU10 110° 4000K (400 lumen) ERP | Smoking ACC. International Ltd.
GERAMEXI GU10 LED Light Bulbs, 4W, 6pcs Non Dimmable Spotlight, 3000K Warm White Replacement for Halogen 50W Light Cup,120V 400lm High Brightness with Glass Cover, for Recessed Track Lighting (3000k) - Amazon.com
Soraa Improves Efficiency of GU10 LED Lamps by 40% — LED professional - LED Lighting Technology, Application Magazine