Philips 429241 72W=100W Halogen Clear Dimmable Bulbs 2 Pack x 2 BRIGHT WHITE: Philips EcoVantage halogen bulbs provide a bright, white energy-saving light to your home. Maven Gifts has bundled two 2-packs together to help you stock up and save. VERSATILE: This bulb style has a regular A19 bulb base for standard lamps and fixtures and a mercury-free dimmable design so they can be used in any room of your home. ENERGY SAVING: Replace your old 100-watt incandescent bulbs with these bulbs for energy savings of a whopping 28%! Light output of 100-watts, or 1,490 lumens, only requires 72-watts to operate. LONG LIFE: Each bulb averages 1,000 hours when used at 3 hours per day. PRODUCT SPECIFICATIONS: Bundle includes (4) Lumens Clear Halogen Bulbs, each measuring 2.6 x 4.1 x 4.2 and weighing 1.6 oz.