streetlights-l : Streetlighting

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Re: LEDs could kill off the HID lamp family There is still a lot of work to be done with LEDs before they become widespread in illumination. Cost is one factor, phosphor life and color shifting/fading Posted - Tue Nov 10, 2009 8:00 am	leel@... leel1052 Offline Send Email
Re: LEDs could kill off the HID lamp family ... I have found that fog has spectral characteristics surprisingly equal at all wavelengths in the visible spectrum range. For example, fog thick enough to Posted - Tue Nov 10, 2009 5:55 am	Don Klipstein don@... Send Email
Re: LEDs could kill off the HID lamp family ... I am more optimistic, given photometric performance of LED lighting units of various color temperatures. (Overall luminous efficacy tends to be maximized Posted - Tue Nov 10, 2009 5:05 am	Don Klipstein don@... Send Email
Re: LEDs could kill off the HID lamp family Well I've actually thought of something similar to having colors change depending on weather! Like if its foggy....it changes to LPS color to break down Posted - Tue Nov 10, 2009 4:10 am	Jason Chapman jecwhiz Online Now Send Email
Re: LEDs could kill off the HID lamp family ... Oh please, don't give them any ideas. Next thing Seattle will switch to all LED's, but they'll all be the same flesh-colored lights they have now. The Posted - Tue Nov 10, 2009 2:23 am	duckfeetbilly Offline Send Email
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