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Not something that I would expect in 2015

Not something that I would expect in 2015

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This 250w MH flood in the church parking lot had an EOL metal halide lamp for a while. However, it was recently relamped with a clear 250w mercury lamp! This fixture seems to light a larger area than the flood with a MH lamp. This is the first time I have seen a clear mercury lamp being used in modern times. It wasn't this green in person, and it had a whiter color. The vegetation looked beautiful under it, and people looked like zombies. Overall, I am very impressed that they chose a clear merc over MH.

SAM_1501.JPG SAM_1505.JPG SAM_1450.JPG SAM_1444.JPG

Light Information

Light Information

Lamp
Lamp Type:Mercury vapor!
Base:Mogul
Shape/Finish:ED28
Fixture
Ballast Type:m58
Electrical
Wattage:250

File information

File information

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Filename:SAM_1450.JPG
Album name:Lumex120 / Metal halide/Mercury vapor
Keywords:Lanterns
File Size:253 KB
Date added:Oct 07, 2015
Dimensions:2465 x 1848 pixels
Displayed:222 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-112441
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themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Oct 07, 2015 at 09:22 PM Author: themaritimegirl
Interesting. They probably just bought what they could find cheapest. Could be a Brinks lamp from Walmart.

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Lumex120
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samrinne.75 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Oct 07, 2015 at 09:28 PM Author: Lumex120
I think they order their lamps from Ruud lighting. I can ask next time I am there, though. The lamp is 250w, not something they have at Walfart.

Any machine is a smoke machine if you operate it wrong enough.

themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Oct 07, 2015 at 09:42 PM Author: themaritimegirl
Oh right, I forgot the wattage that quickly and assumed it was 175.

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streetlight98
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Mike McCann


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Oct 08, 2015 at 02:57 PM Author: streetlight98
Nice! Interesting that they used a MV lamp. Hopefully it's a good quality lamp, or else it won't last much longer than a MH. I'm sure the area is much darker than it would be with a MH lamp though! A new MH lamp is equal to a 400W MV, although they typically dim down to be about as bright as a 250W MV be EOL.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

Lumex120
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samrinne.75 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Oct 08, 2015 at 03:26 PM Author: Lumex120
The 250w MH fixture is brighter, but lights a much smaller area. Maybe this lights a larger area because of the larger arctube?

Any machine is a smoke machine if you operate it wrong enough.

Ash
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Oct 08, 2015 at 04:38 PM Author: Ash
Depends on the sort of optics in the lantern
streetlight98
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Mike McCann


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Oct 08, 2015 at 05:12 PM Author: streetlight98
Yep, certain optics are designed for certain lamps, and some optics are designed to throw the light at different angles depending on the lamp wattage/source. With cobraheads, adjusting the socket toward the street creates a thinner light beam that shines further up and down the road, and sliding the socket towards the curb makes the beam wider, but shorter. Adjusting the socket so that it's higher in the reflector makes the beam angle lower, making the beam tighter and more controlled and adjusting the socket to be lower makes the beam angle higher, which makes the beam less controlled but allows a wider area to be lit. The exact position of the socket to get the desired beam pattern depends on the wattage and lamp type. Typically, there is just "low" and "high" for raising the socket up and down but there can be several positions to adjust the socket further or closer from the curb.

With flood lights, a lot of modern ones don't even allow the socket to be adjusted since the light is just thrown outward with no real beam pattern. Utility-grade floods such as the GE PF-400 Powerflood have specific beam patterns unlike cheap brown floods made by RAB and the like.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

TL8W
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Lee


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Oct 09, 2015 at 12:20 PM Author: TL8W
I have seen clear merc lamps used in Ipswich, QLD only a month ago!

We do not have to agree on anything to be kind to one another. The ability to be civil is available to everyone on earth, for free.

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UCuHQve8emnnL_d9oU44qklw
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Oct 10, 2015 at 09:42 AM Author: Coolcat97
Well all Metal Halide fixtures in Richardson, Texas are automatically relamped with mercury vapor. They don't use metal halide bulbs that come with the fixtures.

Mercury Vapor and magnetic fluorescents forever!
NO LIGHT BANS!!!! Keep communism in CHINA!! NOT USA!

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samrinne.75 UCM30tBQDUECOV6VeG5W87Vg zfarmadillo
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Oct 10, 2015 at 09:57 AM Author: Lumex120
@Coolcat97
Great to hear! I guess that they know how reliable MV is.

Any machine is a smoke machine if you operate it wrong enough.

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