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<p class="MsoNormal">The replacement of T-8 and T-5 fluorescent lamps outside the cleanroom is becoming an increasingly popular Facilities practice.  Has there been any experience with this kind of retrofit inside the cleanroom? Specifically, in Lithography
 and other UV sensitive areas of the cleanroom, have there been any observed (or anticipated) adverse effects from the use of LED lamps?<o:p></o:p></p>
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<p class="MsoNormal">Thanks . . . Tom<o:p></o:p></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:10.0pt;font-family:"Leelawadee","sans-serif";color:#365F91">Thomas A Tribble PE, JD | Northwest 102.32 | 52 Oxford Street | Cambridge, MA 02138 | (tel) 617 495 0990 |(cell)
 617 780 5685 |</span></b><o:p></o:p></p>
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