Bulbrite 776501 1910 Replica LED4ST18/22K/FIL-NOS 4W LED Nostalgic ST18 with Medium Base, Antique Finish Included in the box is: 1- 4 watt Nostalgic LED Filament vintage (ST18) bulb with an antique finish Ideal for use in clear or open fixtures as a vintage focal point that draws attention while being energy efficient Get the vintage look you want for your home with the energy efficiency and long life benefits of LED technology 4 watt, antique, silicone coated, 15,000 hour average rated life, medium (E26) base. Dimmable on Electronic Low Voltage dimmers ONLY Maximum Overall Length is 5" (inches); Bulb Diameter is 2.375" (inches)