Crystal Clear 40-Watt Clear Finish Blunt Tip decorative light bulbs illuminate your home with soft, pleasing incandescent light. They are dimmable to provide just the right brightness. Crystal Clear Blunt Tip light bulbs are rated to last 1.4 years based on 3 hours per day use. The rugged bulb construction withstands ceiling fan vibration better than standard incandescent bulbs. Use these incandescent blunt tip (BM) light bulbs with a medium base in dimmable indoor chandeliers, sconces, ceiling fans and fixtures where the bulb is visible.