Nikon 15W Vertexometer Bulb - Frost [74990-FR], a high-quality lighting solution designed specifically for Lensmeter equipment. This versatile bulb is compatible with various Nikon models including LM-3, LM-4, OL-3, OL-4, and OL-5, ensuring seamless integration into your existing setup. With an average life of 400 hours, this bulb offers long-lasting performance, reducing the need for frequent replacements. Its medium screw (E26) base allows for easy installation, ensuring a hassle-free experience. Crafted with precision, the Nikon 15W Vertexometer Bulb features a C-7A filament that provides consistent and reliable illumination. The inside frost finish enhances light diffusion, resulting in a soft and evenly distributed glow. Powered by incandescent technology, this bulb operates at a voltage of 120V, delivering optimal brightness for accurate lens measurements. The S11 shape and compact MOL (2.25 inches) make it a perfect fit for Lensmeter equipment, ensuring efficient and effective operation. Whether you are a professional optician or a lens manufacturing facility, the Nikon 15W Vertexometer Bulb - Frost [74990-FR] is an essential component for maintaining precise measurements and ensuring accurate results. Upgrade your Lensmeter equipment with this reliable and durable bulb, and experience enhanced visibility and efficiency in your optical processes.