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Thread Number: 74611
/ Tag: Other Home Products or Autos
streetlights/yardlights |
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| Post# 984063 , Reply# 3 2/24/2018 at 03:15 (2,246 days old) by arbilab (Ft Worth TX (Ridglea)) | ||
 When your eyes get ~15yr older, what appears charming now becomes glaring. I can't look in ANY direction outside at night without getting my optics singed. And the dozen or so stars still visible in the metro photon fog a couple years ago are gone with recent repairs and construction. New building nextdoor festooned with kW-equivalent LEDs slams my irises shut.
Can't even look out the gawldang daggflabbed window, mercury bucket and sodium cobras that didn't use to work do now, thanks for nothing. I take a dim view of intrusive, indiscriminate, inconsiderate lighting. Like, why even HAVE night if you're just gonna do THAT to it? | ||
Post# 984155 , Reply# 6 2/24/2018 at 14:29 (2,246 days old) by GusHerb  (Chicago/NWI) |
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You're right they probably were induction. They looked quite old and the light quality was crap. I'm used to everything being HPS and now LED where I live, and municipalities don't have ancient streetlights either. All the LED lights are owned by the utility. | ||
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Post# 984157 , Reply# 7 2/24/2018 at 15:11 (2,246 days old) by wayupnorth (On a lake between Bangor and Bar Harbor, Maine) |
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Post# 984198 , Reply# 8 2/24/2018 at 23:43 (2,245 days old) by tolivac (greenville nc) |
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Induction retrofit kits are available if you want to convert an old fixture.If its and of the HID family-would just leave the light as it was.Now if they could put WARM color phosphors in the induction lamps,fine.And there is concern these lights could cause RFI.Old core-coil HID lights don't have that problem. | ||
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Post# 984227 , Reply# 9 2/25/2018 at 07:51 (2,245 days old) by askolover (South of Nash Vegas, TN) |
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 I have an orange sodium light out back. I just retrofitted an old mercury vapor light my dad gave me that wasn't working correctly. disconnected the transformer inside, wired the Mogul socket direct and screwed in an LED corn bulb from Ebay...but it too is 5000k color. Working nights for 26 years I have zero tolerance for bright lights hitting my eyes. | ||
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Post# 984294 , Reply# 10 2/25/2018 at 14:06 (2,245 days old) by kb0nes (Burnsville, MN) |
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The latest LED's look SO much better then any sodium light. The color rendering of the mono-chromatic sodium light is awful. Early LED's weren't much better but the phosphors in the current lamps are much more full spectrum now. The new lights I see here in MN look awesome to me almost all the time. LED's are outperforming discharge lighting in every metric (and are still improving), discharge lighting will do nothing but decline from here on out.
The most important thing as far as visual appeal and lighting effectiveness isn't the light source but is the design of the fixture. Perhaps here in this area we pay more attention to this but most fixtures are full cutoff and there is almost no glare from these, just uniform color accurate light. Bad fixture design no matter the source is the pits. The next big thing that really needs to happen is to get motion sensors on building and parking area lighting. This is a huge advantage for solid state lighting as discharge lighting doesn't turn on well. This could have a huge impact on power used and light pollution and even act as an additional deterrent to suspicious activity. | ||
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Post# 984381 , Reply# 12 2/26/2018 at 00:16 (2,244 days old) by tolivac (greenville nc) |
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Another BAD thing for LED is there are no ANSI standards for them yet as with other types of lights.LED "bulbs" used and drivers have NO standards-and to make it worse some LED fixtures are NOT repairable-so if any part of the light fails the WHOLE fixture has to be replaced-Is this more "green"? | ||
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Post# 984399 , Reply# 13 2/26/2018 at 07:41 (2,244 days old) by askolover (South of Nash Vegas, TN) |
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Post# 984524 , Reply# 14 2/27/2018 at 00:03 (2,243 days old) by tolivac (greenville nc) |
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"Sure they are more green"-think you have something there!!!ANSI standards for LED lights would be nice-ANSI standards apply to other lighting equipment-why not LED.Would make things easier! | ||
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Post# 985454 , Reply# 17 3/5/2018 at 21:27 (2,236 days old) by kb0nes (Burnsville, MN) |
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So how many lumens per watt is low pressure Sodium at it's best? From what I see it is in the neighborhood of 150 or so. Commercial LED's are around 120 l/w and increasing rapidly. Phillips has bested 200 l/w and Cree is over 300 now. Granted these are prototypes, but the LED technology is in it's infancy and discharge lighting is at the top of it's development curve.
While LPS 'might' have slightly higher luminous efficacy compared to LED's it won't be around much longer for general lighting due to the horrible color rendering. | ||
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Post# 985463 , Reply# 18 3/5/2018 at 22:41 (2,236 days old) by wayupnorth (On a lake between Bangor and Bar Harbor, Maine) |
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There was a couple that lives not far from me that bought one of those on tv solar lights. Installed it on their detached garage and went on a vacation. They came back to find the light burnt to a crisp in their driveway and their garage charred. Naturally, they cant reach anyone at the as seen on tv company. Bad battery, who knows what caused it.
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