The product is a pack of 2 Eveready sewing machine bulbs, each with a wattage of 15W and a small bayonet cap connector. These bulbs are equivalent to Brother and Singer machines and emit warm white light with a colour temperature of 2500-3000K. The bulbs are dimmable, lead-free, and have an energy efficiency rating of G. With a bulb life of 2,000 hours and a clear finish, these incandescent bulbs are suitable for use in sewing machines and other appliances requiring a B15 bulb shape. They come with a CE marking and are designed for easy replacement in various lighting fixtures.