Base spotlights are aimed to replace your current 50-watt halogen ones, rated to last 15, 000 hours, much longer lifespan than the equivalent incandescent lights, which is energy-saving. It can be fully dimmable, works with any dimmer switch, and adjusts its brightness to meet any occasion. Choose a dependable high-quality 120-volt bulb for residential or commercial applications. These LED bulbs fit well into any standard recessed lighting fixtures.