The product is a set of four Philips B22 energy-saving light bulbs that emit a warm white light, with a colour temperature ranging from 2500 to 3000K. These lamps are designed for indoor use and have an energy efficiency rating of A, making them energy-efficient and cost-effective. With a bulb wattage of 11W equivalent to 60W, these frosted bulbs have a long lifespan of 10,000-14,999 hours and are CE marked for quality assurance. The lighting technology used is fluorescent tube, providing efficient and reliable illumination for your home or space.