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EM-risks · Health risks of electromagnetic fields, cellular phones, radio- and TV broadcasting stations, etc. Public concerns of electrosm
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New sensors in street lamps 'to save 9,000 hours of energy a night'   Message List  
Reply | Forward Message #56 of 129 |
Street-lamp sensors have been in use for several years, but Southwark's engineers have carried out several studies allowing them to reduce the time each light is on by 30 minutes per day. Read more at http://earthalternate.blogspot.com/ 
Thu Mar 26, 2009 10:41 pm

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Street-lamp sensors have been in use for several years, but Southwark's engineers have carried out several studies allowing them to reduce the time each light... 		altern4
Offline Send Email 		Mar 26, 2009
10:41 pm
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