Energy Mad said that the Ecospiral light bulbs, which use up to 75% less electricity than regular incandescent bulbs, will be offered at the discounted price of five bulbs for $10 in more than 250 Duane Reade stores in metropolitan New York.

Each New York home that replaces five regular light bulbs with the Ecospiral bulbs can save $980 in energy costs over the life of the Ecospiral bulbs. Energy Mad estimates that this may help New Yorkers save enough electricity to power Yankee Stadium for 10 years.

Energy Mad claims that the Energy Star-approved Ecospiral bulbs are expected to last 15 times longer than standard bulbs, and three times longer than ordinary energy-saving bulbs. They also have low mercury content.

Joe Magnacca, chief merchandising officer of Duane Reade, said: “We are very pleased to be the first to offer Ecospiral light bulbs to New Yorkers. Not only are we helping our increasingly eco-conscious customers do what’s right for the environment, but at the same time we are saving them a little ‘green’ by helping to lower their electric bills.”