Newcandescent, PACK of 12 Incandescent 60-Watt Rough Service Frost A19 Light Bulb. 10,000 Hours Life 519 Lumen. Made in the USA Made in the USA. 10,000 hour average life and 519 Lumens Newcandescent Brand with 7 support filament mounting Tripple alloy tungsten filament Excellent lumen maintenance Brass base prevents corrosion