This 130V bulb works on 120V (standard for American households), but the product doesn't tell you until you receive it (and read it on the packaging) that if you turn it on use a 120V line, they put out 22 watts. Light and not 25. Which is actually fine with me because I use them for accent lighting and not main lighting. In addition, their presence on the 120V line extends their lifespan by almost 3 times (the packaging says 12 years at 3 hours a day). These standard 130V incandescent bulbs have a thicker filament. Feels cool to use them like using good material.