Bright light in darker economic times

By his own admission, Mark Casey has become a ‘‘lighting nerd’’ since setting up Light Eco with Bryan Connolly and Oisin O’Mahony earlier this year.

By his own admission, Mark Casey has become a ‘‘lighting nerd’’ since setting up Light Eco with Bryan Connolly and Oisin O’Mahony earlier this year.

Out shopping recently, Casey found himself counting fluorescent bulbs in a store - a reflection of his preoccupation with his new day job. Light Eco’s main product is an energy saving device that it claims can reduce lighting costs for large organisations by up to 40 per cent.