Nostalgic- Glow Antique Style Bulbs are specially engineered to provide a beautiful mood-enhancing level of light at standard line Voltage. Most will operate with a normal life expectancy all the way up to 240 Volts. The wonderful glow from the special filaments is reflected magically in the crystalline envelope of the amber bulb. 30 watt at 120 Volt - 60 watt at 220 Volt.