Quart Open Bottom Mason Jar Pendant Lamp - Rustic Brown Add our option of pulleys for a really nice industrial look. Measures to be about 4 diameter and 10 tall Includes a quart mason jar with no bottom. Use these for higher wattage bulbs such as 40 or 60 watts. These lamps plug into any wall outlet; no wiring required. PLEASE NOTE: Requires 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.