Work to upgrade more than 24,000 streetlights in Devon will continue this month.Lower wattage LED lighting will be installed in Appledore; Bideford; Combe Martin; Holsworthy; and Lynton and Lynmouth as part of a £10.2 million scheme that will see around 5,000 columns replaced on mostly main (A and B) roads. The project got under way earlier this year in Barnstaple, where around 5,200 lights and 1,100 columns are being replaced. It is being paid for using Challenge Funding, which Devon County Council received following a successful bid to the Department for Transport. Councillor Stuart Hughes, the county councils member for highways, said: The modern LED technology will improve the quality of lighting while operating on a much lower wattage than the existing streetlights. The scheme aims to reduce carbon emissions, energy consumption and energy costs. Based on current prices its estimated that the scheme will save the county council around £1million per year in energy costs. The project is expected to take two years to be fully implemented.