The Feit Electric 40-watt Soft White Vibration Service A19 incandescent bulb features rugged shock-resistant filaments that resist damage from vibration. Ideal for use in any area where extra durability and resistance to shock and vibration is needed. The bulbs are dimmable and 130 volts for additional protection from power surges to ensure long life. This convenient bulb is a perfect solution you keep your business well-lit and running smoothly.