Brightness Quality: 1490 Lumens. Energy Info: $8.67 Based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 72 Watts. Package Info: 4-Pack 4 Bulb Info: Halogen Is Dimmable Bulb Life: 0.9 Years Based on 3 hrs/day. Bulb Appearance: 3000 Kelvins. Misc: Real savings. Highest quality. Every day. 100W replacement using only 72W. Mercury free. Life: 1000 hours. To save energy costs, find the bulbs with the light output you need (lumens), then choose the one with the lowest watts. These lamps comply with federal energy efficiency labeling requirements. Great products at a price you'll love - that's Essential Everyday. Our goal is to provide the products your family wants, at a substantial savings versus comparable brands. We're so confident that you'll love Essential Everyday, we stand behind our products with a 100% satisfaction guarantee. Please contact us at www.essentialeveryday.com. 72W 1490 lumens - 100W 1690 lumens - 28% energy savings (The reduction of wattage from 100W to 72W represents at 28% savings). SA. Product of USA.