The product is a 4 pack of Philips Energy Saver Light Bulbs in E27 screw shape. These bulbs provide warm white light with a colour temperature of 2500 - 3000 K. They are energy-efficient with an energy efficiency rating of A and have a bulb wattage of 11W, resulting in a luminous flux of 400-799 lm. These energy-saving bulbs also feature a frosted finish and have a long bulb life hours of 10,000-14,999 hours. Made by Philips, these compact fluorescent lamp bulbs are designed to be energy-efficient and are CE marked for quality assurance.