<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Shawn/Christopher,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I've attached the lamp we used (97829, and 57839). We retrofitted a ceiling full of T-12 fluorescent to LED, and installed new "yellow" sleeves (Tarp50) on them for the areas that we wanted to remain photolithography compliant. We also retrofitted about a dozen fixtures where we had T-5 fluorescent tubes with LED bulbs. There were over a 1000 bulbs installed on this project, and in the year that they've been installed, I've had to change out three bulbs. That's not bad considering they're on 24/7/365. When we had fluorescents, we were changing about 50 bulbs every six months.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">We tried some of the 57840 lamps, and found them to be acceptable, but when we looked at the install costs, it was considerably cheaper to use the "white" bulb with the yellow sleeve, and this provided more long term flexibility if we wanted to "change" other areas to yellow at a later date.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">As part of this retro fit, we also modified some of our existing lighting fixtures (about a 100 of them) to go from a 2-bulb design, to a 4-bulb design. </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div>Dennis</div><div> </div><div>734.647.2055 Ofc<br></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Oct 19, 2018 at 5:55 PM Shawn Corcoran <<a href="mailto:Shawn@reynoldstech.com">Shawn@reynoldstech.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">Good afternoon, I stumbled across your post online concerning the changeover to LED bulbs in your cleanroom and had a couple of questions if possible.<div dir="auto"><br></div><div dir="auto">We are currently building some equipment and need LED's for the litho hoods. This has become a stumbling block finding the correct wavelength in an LED that isn't a standard 4' T8 style bulb. Could you provide any more info on what you found or used?</div><div dir="auto"><br></div><div dir="auto">Regards,</div><div dir="auto">Shawn Corcoran</div><div dir="auto"><br></div><div dir="auto">Reynolds Tech Fabricators</div><div dir="auto">6895 Kinne St</div><div dir="auto">East Syracuse, NY 13057</div><div dir="auto">315-437-0532</div></div>
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