This 150 Watt Equivalent, A23 LED, Non-Dimmable Light Bulb, Daylight (5000K) E26/Medium (Standard) Base is ideal for applications that require bright light sources, especially where the light bulb is visible (6 pack). Perfect for use in commercial applications, barn lighting, and decorative outdoor lighting fixtures. Suitable for use in damp locations and use in enclosed fixtures. This LED bulb lights up instantly and works on a voltage range of 120-277 volts. Can be used as a replacement for high lumen light bulbs including those operating on 277 V building mains without a transformer or ballast. LEDs contain no harmful mercury, reducing their impact on the environment.