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Item No. 08F Meeting Date: November 14, 2005 Type of Business: CB WK: Work Session; PH: Public Hearing; CA: Consent Agenda; CB: Council Business City Administrator Review _______ City of Mounds View Staff Report To: Honorable Mayor and City Council From: Tracy Juell, Administrative Assistant Item Title/Subject: Electronic Message Board Retrofit with an LED Lighting System Resolution Number 6671 Background: On December 13, 1999, City Council authorized the purchase of the Daktronics electronic message board in the amount of $40,741.00 from AIM Electronics. At the time of the purchase of the electronic message board incandescent, white lighting was the “in thing” and LED red lighting was just at its beginning stage. On February 7, 2005 a staff report was presented to Council with different options for repairing the message board. At that time, Council directed Staff to replace the bulbs as opposed to retrofitting the message board with an LED lighting board. On September 12, 2005 Council did not approve the bid alternate for the City Hall Rehabilitation Project for the “tower style” front entry and stated they’d rather apply the money towards retrofitting the message board with an LED system. On October 6, 2005 a quote was solicited from 3 companies to retrofit the message board to an LED lighting board. Discussion: LED Lighting As mentioned in an earlier staff report, at the time of the purchase of the electronic message board, LED lighting was just at its beginning stages. The past 5 years have seen dramatic strides in LED lighting, some of which follow: • The current incandescent bulbs have an operational life of approximately 5,000 hours each. Because the City operates the electronic message 24 hours/7 days a week, bulbs last for only approximately 29 weeks. For LED lighting, the hours increase to 100,000 hours for each lamp bank (LED are not individual bulbs like the current bulbs: instead they are in lamp banks and instead of “burning out” they will just fade to a lighter shade of red, thus the sign will always be readable- unless there is a major part that needs to be replaced).