(10 Pack) 50MR16/GU10-50 Watt - Flood - GU10 (Twist & Lock) Base - 120V 50W - 120V - GU10 Base - Halogen Light Bulbs - Long Life 2000 Hours MR16 - 120V - 38 Degree Flood - 550 Lumens GU10 - Twist-N-Lock Base Fits Candle Warmer Lamps created after 2008 with a GU10 Base Pack Of 10 Bulbs