Brightness Quality: 850 Lumens. Energy Info: $6.38 based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 53 Watts. 120 Volts. Package Info: 4-Pack 4 Bulb Info: Incandescent Indoor Is Dimmable Bulb Life: 0.9 Years based on 3 hrs/day. Bulb Appearance: 2840 Kelvins. Misc: 4 medium base A19 bulbs. 53 w replaces 75 w. 29% energy savings (Compared to a 75 watt A19 incandescent bulb with 1180 lumens and a lifetime of 750 hours (or compared to a 75 watt A19 incandescent modified spectrum bulb with 950 lumens and a lifetime of 750 hours), this 53 watt modified spectrum EcoVantage bulb with 850 lumens and a lifetime of 1,000 hours saves 29% energy). Dimmable, pleasant light. Mercury free. Energy saving incandescent. This bulb meets the modified spectrum lumen requirements stated in the Energy Independence and Security Act of 2007 (EISA). This bulb uses energy saving incandescent technology (also called energy saving halogen). The halogen capsule inside enables this EcoVantage bulb to perform like a standard incandescent bulb while using less energy. Beautiful, soft white light. Fully dimmable & instant on. Contains no mercury. Questions or Comments: 1-800-555-0050 or www.philips.com. Made in Poland.