Mammoth project to see 77,000 energy-efficient lightbulbs fitted over two years

The €54m project will see tens of thousands of lights upgraded throughout Munster

Cork City and county will see the highest number of LED lights installed, with 38.55% of all the numbers to be retrofitted in the five counties. Picture: Eddie O'Hare

It's a twist on an age-old question: how long does it take to screw in a lightbulb?

Well, if the question is actually how long it takes to screw in 77,000 energy-efficient public lightbulbs, the answer is somewhere around the two-and-a-half-year mark.