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As legislation, environmental concerns and escalating operating costs heighten the need for more economical lighting <br />solutions, color breakthroughs in High Intensity Discharge (HID) technology have brought the benefits of peak <br />efficiencies, prodigious light output and extremely long life to applications to the outdoor applications for which HID <br />sources are required. <br />ITEM 'B'- LAMP TYPE SOURCES <br />The three types of light sources are as follows: <br />Metal Halide: These lamps display cool white light, high efficiencies and excellent color rendering properties. The two <br />types of lamps for this report are both rated at 175 watts. The difference between the two are one is clear and the other <br />is a phosphor coated lamp. <br />Hieh Pressure Sodium: These lamps display golden yellow light, outstanding efficiencies and long life. The two types <br />of lamps for this report are both rated at 150 watts. High pressure sodium lamps are not available at 175 watts. These <br />lamps can be obtained in various ranges of CRI. The two listed for this report are not standard type lamps. These lamps <br />will have to be ordered with an "improved color rendering" rating for the better CRI. <br />Induction: Invented in 1991, this electrodeless system features and extraordinary 100,000 -hour life or 12 years of <br />continuous operation along with tool -free replacement ease. The lamp listed for this report is rated at 165 watts. With <br />an 80+ CRI rating and. CCT rated at 3000, this lamp is an extremely good choice for this application. The price for this <br />unit is three times the normal average price of a high pressure sodium lamp but for the quantity of lamps for this project <br />and lamp life, the pay -back is within two years of time. <br />ITEM 'C'— LAMP SPECIFICATION AND COLOR TEMPERATURE CHARTS <br />Lamp Type <br />Lamp <br />Description <br />Lamp Catalog # <br />Lumen Output - <br />Means <br />Lumen Output - <br />Initial <br />Lamp Base <br />Color <br />Temperature <br />Color Rendering <br />Index (CRI) <br />Rated Aug. Life <br />Hrs. <br />Metal Halide <br />175W -Clear <br />Lamp <br />046677-28733-4 <br />8,775 <br />13,500 <br />MOG. <br />4300 <br />60 <br />10,000 <br />LAMP SPECIFICATION <br />Ceramalux <br />Metal Halide <br />Comfort -High <br />Pressure Sodium <br />175W -Phos. <br />150W -Improved <br />Coated <br />Color Rendering <br />046677-28728-4 <br />046677-30643-1 <br />8200 <br />10,800 <br />13,000 <br />MOG. <br />3900 <br />65 <br />10,000 <br />12,000 <br />MOG. <br />2200 <br />60 <br />15,000 <br />Ceramalux <br />High Pressure <br />Sodium <br />150W <br />046677-36876-1 <br />14,400 <br />16,000 <br />MOG. <br />2100 <br />21 <br />24,000+ <br />Induction <br />QL-165W <br />QL-165W <br />12,000 <br />12,000 <br />Bayonet <br />3000 <br />80+ <br />100,000 <br />it <br />