Attractive decor: these classic squirrel cage edison bulbs with warm glow allow you to perfectly light any space which will be the perfect piece for adding a timeless charm to your house.use the e26 / e27 socket. Long life span: these antique edison bulbs have proven through testing to last 2, 000+ hours. At 5 hours of use per day you'll get over 1 year in lifespan. Specifications: voltage:180-250v lumen: 370 lumens base type: medium base e26/e27 average life: 3000 hours.