Lighting revolution shakes up industry

More than 130 years after Thomas Edison and Joseph Swan invented the incandescent lightbulb, regulation is gradually phasing out the bulbs in favour of more energy-efficient lighting sources, shaking up the global industry. The switchover is happening well beyond the European Union, which ended the sale of inefficient lightbulbs in September. The US and China are, for example, due to ban incandescent bulbs from shelves in 2015 and 2017, respectively.