The Lifespanled 36Ytx 39 100 Through 277 V Mogul Extension 4000 K is a high-quality light bulb with a voltage range of 100 to 277V. Produced by the brand Litespanled, this model offers reliable and efficient lighting for various applications within the Home & Garden category. Perfect for use in lamps, lighting fixtures, and ceiling fans, the Lifespanled 36Ytx 39 delivers bright and consistent illumination while providing energy savings.