The Merkury Innovations Dimmable 75W Equivalent Wi-Fi Smart Bulb comes in a pack of 2 bulbs. These color-changing LED bulbs have a brightness of 1050 lumens and a bulb shape code of A21. They are energy-saving and dimmable, allowing for customizable lighting options. With a bulb wattage of 75W, these smart bulbs can be controlled remotely via Wi-Fi. The compact dimensions of 4.30 x 2.40 x 4.40 inches make them suitable for various lighting fixtures in homes or offices.