Maintain the exceptional performance of your Library of Congress Lamp 2.0 with this specially designed Center Socket Replacement Bulb. Delivering bright, balanced 4000K illumination with high color accuracy (CRI 90+), this 30W C75 bulb provides clear, comfortable lighting ideal for reading, writing and focused work. Its coated finish helps reduce glare while enhancing visual comfort, and it is engineered specifically for use with the Library of Congress Table Lamp 2.0 and Floor Lamp 2.0 for reliable, seamless performance.