Each pack contains four LED bulbs that are 80+ CRI for better color rendition, making greens, reds and blues appear more accurately. Ideal for use in desk, floor, and table lamps, they look great with or without a shade. Intended to replace 100W incandescent bulbs, these produce 1500 lumens of light while using a lower wattage. Lifetime of up to 11,000 hours, offering years of service and reduced energy and maintenance costs. Non-dimmable.