4å_" diameter and 11å_" tall. Includes a half gallon mason jar with no bottom. Use these for higher wattage bulbs such as 40 or 60 watts. Shown with a 40 watt vintage bulb, not included. With the open bottom and ventilation on the top, these provide plenty of light while keeping everything cool. This lamp includes: 15å_ foot cloth-covered lamp cord with switched socket, two finished ceiling hooks, two cord clamps for adjusting the height of the lamp, and easy-to-follow instructions.