The Mentor BAT bulb [22-4506] is a high-quality replacement bulb designed specifically for the Mentor Brightness Acuity Tester (BAT). This 3.7V, 2.7W T1.5 bulb is built to deliver exceptional performance and accuracy in measuring brightness acuity. With a luminous flux of 36 lumens, this Mentor BAT bulb ensures precise and reliable results during brightness acuity testing. It operates at a current of 0.74A, providing optimal power to accurately assess the visual acuity of individuals. Crafted with durability in mind, this bulb is made to last, ensuring long-lasting performance and reliability. It is designed to seamlessly fit into the Mentor BAT, making it easy to replace and maintain the functionality of the device. Whether you are a healthcare professional, optometrist, or involved in vision testing, the Mentor BAT bulb [22-4506] is an essential component for accurate and efficient brightness acuity testing. Trust in its quality and compatibility to deliver reliable results every time.