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LED STREET LIGHTING INFORMATION AND FREQUENTLY ASKED QUESTIONS <br />.................... ............................... ......................._..1111_ 111__1_ 11.11.. _ ._. __1111_... _ ... ...__1...1...11................ <br />In the meantime, LED manufacturers will continue to solicit your business <br />with promises of cost reductions in operations and maintenance budgets, <br />and kilowatt hour usage. To help you make sound decisions about LED <br />street lighting, we have provided the following questions for you to use <br />as a guide: <br />1. How much money has your company spent on research and <br />development for LED street lighting? <br />Large street light manufactures have spent billions of dollars on research <br />and development to develop high quality LED street light fixtures. If the <br />vendor cannot answer this question, it may warrant more research on <br />your and prior to purchasing. <br />2. What is your warranty? <br />Most warranties for LED street light fixtures will vary from five to 10 <br />years, but the largest manufacturers have gone to a 10 year full coverage <br />warranty. If the company does not offer a full coverage warranty it may <br />be difficult for you t0 get reimbursed if something doesn't work. <br />3. Why is your LED fixture much less money than other brands? <br />LED street light manufacturers may try to sell a lower cost LED street <br />light fixture. A low cost LED street light fixture typically means a less <br />technically sound design, which means the LED fixture could have a <br />reduced useful life. <br />4. Why do you say that your LED street light is the best? <br />Many companies can say they have been in the LED business, but may <br />have not been in the street lighting business. The expertise that comes <br />with a long -term street light manufacturer will be valuable. <br />5. What is the payback for LED street lighting? <br />There are many factors to consider when determining the payback <br />timeframe for LED street light systems. Some of them are: <br />— Number of street lights installed (pricing discounts for large <br />quantities) <br />— Decorative or standard cobra head lights (decorative will be <br />much more expensive and have a longer payback) <br />— Cost per kilowatt hour (kWh) - as a rule of thumb: the higher the <br />kWh charge, the shorter the payback <br />If you have any questions about LED street lighting please contact <br />Ed Bieging, Xcel Energy Outdoor Lighting at 651 -229 -2400. <br />�.11 <br />A f; <br />Xcel Energy® <br />RESPONSIBLE BY NATURE; <br />1- 888 -481 -4708 1 xcelenergy.com <br />© 2012 Xcel Energy Inc. <br />Xcel Energy is a registered trademark of Xcel Energy Inc. <br />Northern States Power Company - Wisconsin, <br />an Xcel Energy company. <br />12 -08 -321 <br />