<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; ">Normally companies only warranty operation to chip temps of 85 C so you may need to find a company that does business with the military. You can't do a 125 C spec in the (Cree) plastic package, you need a glass hermetic ceramic package. </div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><span style="right: auto; "></span> </div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><span style="right: auto; ">This one goes to 100 C. </span></div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><span style="right: auto; "><a href="http://www.cree.com/~/media/Files/Cree/Chips%20and%20Material/Data%20Sheets%20Chips/CPR3BV.pdf" style="right: auto; ">http://www.cree.com/~/media/Files/Cree/Chips%20and%20Material/Data%20Sheets%20Chips/CPR3BV.pdf</a> </span></div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><span style="right: auto; "></span> </div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><span style="right: auto; ">With this one, the junction temp can go to 150. </span></div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><span style="right: auto; "><a href="http://www.cree.com/~/media/Files/Cree/LED%20Components%20and%20Modules/XLamp/Data%20and%20Binning/XLampXPEHEW.pdf" style="right: auto; ">http://www.cree.com/~/media/Files/Cree/LED%20Components%20and%20Modules/XLamp/Data%20and%20Binning/XLampXPEHEW.pdf</a> </span></div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; ">You only have 25 deg C headroom for temperature drop from the thermal resistance to air (so you have heat sink concerns). </div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "> </div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><br></div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "><var id="yui-ie-cursor"></var> </div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "> </div><div style="right: auto; font-family: 'bookman old style', 'new york', times, serif; font-size: 16px; "> </div></body></html>