|MadSci Network: Engineering|
Hi Chris: My suspicion is that the photoelectric circuit responsible for turning the light on when is dark has a temperature sensitive malfunction. It could be in the photocell itself or in the solid state switch that turns the light on and off. It could also be that mechanical contact is being broken as function of heat. The lamps require a few minutes to light up once the circuit is restored. Low-pressure sodium lights have a long life and are very efficient in converting electricity to light and are used extensively in street lighting. You might give the highway department a call to let them know the light is misbehaving! I enclose a hyperlink to a web page about sodium streetlights. http://www.csw.com/apogee/litehtml/blthlps.htm Your MAD.SCI Micro
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