75w (Compare! Nearly as much light) replacement. 29% energy savings (Compare! Nearly as much light). Using 53w. Clean, white light. Full spectrum. Indoor: Light Output: 850 lumens. Energy Used: 53 watts. Life: 1000 hours. Standard based. Brightness 850 lumens. Estimated energy cost $6.38 per year. A19 Halogen: 53 watts; 850 lumens; 1000 hours. (The reduction of wattage from 75w to 53w represents a 28% savings.) Guarantee: If the product fails to perform as advertised within thirty (30) days of purchase, return the product with its original packaging and receipt to the retail store where purchased and manufacturer will provide replacement product free of charge. www.sylvania.com. 1-800-Lightbulb (1-800-544-4828) www.sylvania.com (US & Canada). Made in Hungary. Brightness Quality: 850 lumens. Energy Info: $6.38 Based on 3 hrs/day, 11 cents/kWh. Cost depends on rates and use. 53 watts. Package Info: 4-Pack. Bulb Info: Halogen. Indoor. Screw. Standard Bulb Life: 0.9 years Based on 3 hrs/day Bulb Appearance: 2775 k.