I have some more terrible news, Allegheny Power is replacing all the mercury vapor streetlights with high pressure sodium ones in Ford City, Armstrong County,...
... While this is all obvious to anyone who has any real knowledge of lighting, you have to remember that the laws and regulations are created by politicians...
Ya know, it's funny. They talk about baning MV lamps because they are they least efficient! Yet when it comes down to it at work it seems I can fill a bin full...
Apparently it wasn't good enough for them to ban fixtures and ballasts. NEMA has now proposed to ban all MV lamps from being manufactured by 2016. Yes, lamps....
... I read somewhere that the Titanic used a 100VDC electrical system and bulbs roughly equivalent to modern 40W incandescent in output. I've never been able...
Gang--just returned from a trip to NYC and saw the Titanic Artifacts exhibit. Part of the exhibit included a mock-up of a third class passageway. The light...
Guys, I'm sorry I have to share the news, but I found out NEMA drafted a new proposal regulating outdoor lighting. Within this bill, mercury vapor lamps will...
Folks: Returning from San Francisco Airport last night, I headed East on the San Mateo Bridge from 101 to 880. The Bridge consists of two sections--a newer...
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...
... I have found that fog has spectral characteristics surprisingly equal at all wavelengths in the visible spectrum range. For example, fog thick enough to...
Don Klipstein
don@...
Nov 10, 2009 5:55 am
6195
... I am more optimistic, given photometric performance of LED lighting units of various color temperatures. (Overall luminous efficacy tends to be maximized...
Don Klipstein
don@...
Nov 10, 2009 5:05 am
6194
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...
... 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...
I think that the technology has to be developed so hat the LEDS can be used in cobraheads. They still haven't developed ones that are bright enough to replace...
Mdschmier@...
Nov 8, 2009 9:01 pm
6190
It's not a streetlight head but something similar to what you are talking about I saw on eBay just recently. A programmable RGB lamp. Ebay item # 230392729422 ...
What would be really cool is if someone would make an LED streetlighting source/head with programmable color; i.e. you could set it so emulate incandescent,...
... Alleluiah, let it be so. I just saw some of those LED's (the ones I recently reported. They are really pretty. They don't look EXACTLY like the old MV, but...
... If they must take away HID, at least make sure this includes the dastardly HPS lights as well. Any change in those would be an improvement. Billy...
Well to tell you my opinion, HID is junk for the most part. The only truly proven and reliable HID lamp is the good ol' mercury vapor lamp. HPS and MH...
As long as the technology continues to become more advanced, why not?  Energy consumption reduction would be wonderful, the white light will come...
I was thinking, because of the growing popularity, that LEDs could kill off the HID family of lamps. Would it be a good thing or a bad thing for you guys? I've...
Billy - the site at the North end of Broadway is actually an LED test site! There are several others around that area... But that's the only one with...
I almost couldn't believe my eyes. But for those who may be in Seattle, I was driving along Broadway Avenue on Capitol Hill. That I did it after dark for the...
Welp, seems that AZ still follows CA in a lot of things. Behold the LED intersection at the east bound ramp of I-17 and 19th Av. This morning was the first...
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