A number of UK roads are lookin' a lot brighter now, and it's all thanks to the SolarLite smart stud. Produced and marketed by Astucia, these active markers trump the traditional passive reflectors by storing up solar energy all day and then emitting light from dust 'til dawn in order to improve visibility from around 90-meters to 900-meters.http://www.engadget.com/2007/11/21/astucia-solarlite-led-studs-light-up-highways-after-dark/
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