Norwich-based lighting company EnLight uses a light sensor system networked to a Wi-Fi-enabled chip to turn on lamps at night only when people are near. The chip also has built-in GPS, which remotely identifies and monitors each street lamp on a circuit, and automatically switches them on at pre-set times, then dims them by 30 per cent between 12.30am and 6am. This results in huge savings on both energy consumption and bills. MV enlight.co.uk
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