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GE Lucalox LU400 400w HPS bulb

GE Lucalox LU400 400w HPS bulb

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What's that green circle on the top of the bulb?

20190102_094412.jpg IMAG1590.jpg IMAG1546.jpg IMAG1535.jpg

Light Information

Light Information

Manufacturer:GE
Lamp
Lamp Type:HPS
Filament/Radiator Type:arc tube
Base:Mogul
Electrical
Wattage:400w

File information

File information

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Filename:IMAG1546.jpg
Album name:lightinglover8902 / Other Lighting of all Types
Keywords:Lamps
File Size:388 KB
Date added:Dec 15, 2018
Dimensions:1386 x 2464 pixels
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Date Time:2018:12:15 19:45:27
DateTime Original:2018:12:15 19:45:27
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fluorescent lover 40
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UCi55A3hASj7xOZ1eTRO1Jvg
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Dec 15, 2018 at 08:40 PM Author: fluorescent lover 40
It means these lamps are ECO-friendly or "low mercury" lamps. Just like those Philips ALTO HPS and CMH lamps.

Good quality things are awesome. Cheaply made things are not.

Collector of lights and anything else that interests me as long as I have space for that particular thing!

lightinglover8902
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Power distributor: CenterPoint Energy. 120V 60Hz


GoL UCfoxh9h5FaLg-R04V8WDi3w
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Dec 15, 2018 at 08:57 PM Author: lightinglover8902
So it's basically an mercury free lamp? Just being curious, because I never seen that green circle on a bulb before.

Save the Cooper OVWs!! Don't them down by crap LED fixtures!!!

fluorescent lover 40
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UCi55A3hASj7xOZ1eTRO1Jvg
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Dec 15, 2018 at 09:05 PM Author: fluorescent lover 40
Not mercury free, LOW mercury.

Good quality things are awesome. Cheaply made things are not.

Collector of lights and anything else that interests me as long as I have space for that particular thing!

lightinglover8902
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Power distributor: CenterPoint Energy. 120V 60Hz


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Dec 16, 2018 at 06:04 AM Author: lightinglover8902
Oh, ok.

Save the Cooper OVWs!! Don't them down by crap LED fixtures!!!

streetlight98
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Mike McCann


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Dec 16, 2018 at 11:49 AM Author: streetlight98
The green ring is their symbol for "ECOLUX", which is their version of an Alto lamp like fluorescentlover40 said. Last I checked you can still get non-ecolux GE HPS lamps. The utility company here used GE HPS lamps until maybe 2007-ish and up until that point they were excellent lamps. I have a couple of these green ring Ecolux HPS lamps in my collection but they're not in use so IDK how good they are. The Sylvania ones the utility company used here now are hit or miss. Some last several years while others make it just months.

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

BT25
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Dec 16, 2018 at 03:39 PM Author: BT25

Not mercury free, LOW mercury.


And very yellow when in operation. Makes standard HPS look like a DX HPS!

Formerly known as WestinghouseCeramalux.

Westinghouse Lifeguard Disease...it's nothing to fear...one can treat it by buying more! :poof: :lol:
Personally, I've been dealing with it since age 5, and I'm still alive and healthy! :lol: :lol:

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Dec 16, 2018 at 04:07 PM Author: Max
These lamps are indeed yellower: less mercury results in a reduced red emission while an increased xenon pressure enhances the green emission. I've always preferred the light color from earlier standard HPS lamps, it looks more natural. Sure enough, while the color point of this particular HPS light lies right on the blackbody locus, that of Super and Eco HPS lies above, and that's why the latter is much less appealing to the eye.
streetlight98
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Mike McCann


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Dec 16, 2018 at 04:12 PM Author: streetlight98
I've always liked the look of 90s-present (non-Ecolux) GE HPS lamps because of their peachy hue. Looks nicer than the sickly yellow of Philips and Sylvania HPS lamps. Though lately I've noticed some batches of newer Sylvania lamps (50W and 100W, as they are used here by the utility company) have the peachy GE color and even have a brief time at warm up where they are bluish-green.

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

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