The product is a lot of 4 Feit Electric ESL13T/D 13W Daylight Mini Twist CFL Light Bulbs. These light bulbs are new, come with a warranty, and are custom bundled for a discounted price of $15.50. Made by Feit Electric Co in China, these light bulbs are specifically designed for business and industrial use, providing bright and reliable lighting. The twist design allows for easy installation and ensures a secure fit, making them a convenient and reliable lighting solution for any facility.