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This is *the* place on the net to talk about all aspects of 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
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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
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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
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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
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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
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 8 53 7 19 17 2 19 25
2008 56 39 33 16 11 4 34 44 10 6 13 5
2007 33 81 63 14 25 14 28 9 10 26 73 46
2006 128 117 83 85 62 21 54 122 55 46 54 42
2005 106 85 10 4 12 64 4 34 3 56 225 105
2004 101 93 98 138 24 22 91 78 59 23 140 124
2003 312 211 87 119 173 130 188 150 93 146 120 126
2002 94 31 126 142 56 123 99 52 61 147
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