There is provided a lamp capable of informing a user that the LED lamp is at the end of its productive life and urging the user to replace the lamp reliably with a simple configuration. According to one embodiment, the user viewable element is a layered panel in an HTML web page and is displayed on an edge of the web page. The sound source is a distributed, functionally continuous sound source adapted to exploit this feature. When the external pressure is rapidly dropped, the material explodes as the supercritical gas absorbed into the material rapidly expands outward. Additionally, the computer executable code is operable to dynamically control at least one blower and at least one vent in the data center based on the overlaid thermal analysis to direct cool air to a section of the data center in need of cooling. The housing may define an interior, with the interior of the housing being free of soft seals.