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GE HR100DX/A23 100W Mercury Lamp

GE HR100DX/A23 100W Mercury Lamp

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Here is a NOS 100W HR100DX/A23 lamp made by GE in Hungary of all places. It is designed for the US market to run on their H38 ballasts, but it will run satisfactorily on a UK 70W HPS ballast.
This particular lamp seems to have a small sliver of glass loose in the outer envelope, which has scratched some of the phosphor off, but it still lights ok and it would not be noticed in normal use.

20181031_132325.jpg 20181031_132350.jpg 20181031_132438.jpg DSC02330.JPG

Light Information

Light Information

Manufacturer:General Electric Company
Model Reference:HR100DX/A23
Lamp
Lamp Type:High Pressure Mercury Vapour
Filament/Radiator Type:Quartz Arc Tube
Base:E26 (Medium)
Shape/Finish:A23 (pear shape)
Service Life:24000 hours
Electrical
Wattage:100
Voltage:130
Current:0.8A
Optical
Lumen Output:4100
Color Temperature:4000°K
Color Rendering Index:40
Physical/Production
Dimensions:145 x 68mm
Factory Location:Hungary
Fabrication Date:Date code 1103

File information

File information

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Filename:20181031_132438.jpg
Album name:sox35 / Mercury Vapour lamps
Keywords:Lamps
File Size:259 KB
Date added:Oct 31, 2018
Dimensions:2464 x 1386 pixels
Displayed:27 times
Date Time:2018:10:31 13:24:38
DateTime Original:2018:10:31 13:24:38
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FNumber:f 2.4
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Focal length:3.3 mm
ISO:125
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rjluna2
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Robert


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Oct 31, 2018 at 10:14 AM Author: rjluna2
Nice, Ria

Pretty, please no more Chinese failure.

sox35
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Mainly the electrical side of things


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Oct 31, 2018 at 10:29 AM Author: sox35

Nice, Ria

Thanks, I love this bulb shape, it reminds me of the 1955 Philips lamps. Had to wait 2 weeks for them though, they got held up in customs for some reason

Ria in Aberdeen
It'll be all right in the end, and if it isn't all right, it isn't the end  Smiley

rjluna2
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Robert


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Oct 31, 2018 at 12:03 PM Author: rjluna2
Can you make side by side comparison between this bulb and the European version? That's what I have done with past when someone sent me European bulbs and post side by side comparison here

Pretty, please no more Chinese failure.

sox35
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Oct 31, 2018 at 02:06 PM Author: sox35
Unfortunately we don't have 100W MV lamps here, so it's difficult as there's nothing to directly compare it with. We have 50W & 80W then the next size up is 125W, however there are 100W HPS lamps, so it's an oddity.

What I do like about American discharge lamps is the ballast numbering system, so you always know exactly which ballast to use for a particular lamp.

Ria in Aberdeen
It'll be all right in the end, and if it isn't all right, it isn't the end  Smiley

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