Halogen 50-Watt GU10 Indoor Floodlight bulbs cast a wide beam of warm white halogen light. The split reflector design emits light from the front and back of the light bulb, great for adding a decorative touch to track lights and pendants. They are dimmable to provide just the right brightness. Halogen MR16 (2-inch diameter) Indoor Floodlight bulbs with GU10 bi-pin bases are rated to last 1.8 years based on 3 hours per day use and featured a covered lens. Use these halogen MR16 bulbs with GU10 bases in indoor track lights, pendant lights and recessed lights with 120 Volt plug-in sockets.