The Bulbrite 704040 - 40T10F 40-Watt T10 Tubular Light is a set of four microwave bulbs designed to create a warm, inviting atmosphere in your kitchen. With the brand's reputation for quality and reliability, you can trust that these bulbs will provide the perfect amount of light while also being energy-efficient. The frost cover on these bulbs helps to reduce glare and create a more comfortable lighting experience for you and your family while cooking or heating up your favorite meals.