The product is a 6-pack of Westinghouse Lighting 03726 Corp 12-watt high intensity bulbs. These bulbs are manufactured by Westinghouse, a reputable brand in the lighting industry. The manufacturer part number for this product is 0372600, ensuring easy identification and compatibility with compatible fixtures. With a high intensity output of 12 watts, these bulbs provide bright and efficient lighting for various applications within the home, garden, or office setting.