The Marco Keratometer Main bulb [3006] is a high-quality replacement bulb designed specifically for use with the K-I, K-II, and Alliance Marco Keratometers. This 120V 15W bulb is essential for maintaining optimal performance and accurate measurements in these keratometers. With its durable construction and precise design, this main bulb ensures consistent and reliable illumination for accurate keratometry readings. It provides a bright and focused light source, allowing for clear visibility of the cornea and accurate measurement of its curvature. Easy to install, this Marco Keratometer Main bulb [3006] is a cost-effective solution for replacing a worn-out or damaged bulb. By replacing the bulb, you can restore the functionality of your keratometer and ensure accurate and reliable measurements for your patients. Whether you are a healthcare professional or an optometrist, this replacement bulb is an essential accessory for your Marco Keratometer. Invest in the Marco Keratometer Main bulb [3006] to ensure the longevity and accuracy of your keratometer, providing you with the necessary tools to deliver precise and reliable eye examinations.