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2 x GE HR100DX/A23 100W Mercury Lamps

2 x GE HR100DX/A23 100W Mercury Lamps

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Here are two GE HR100DX/A23 lamps in an A23 (pear shaped) bulb. These are still very popular in the US and are operated from their H38 ballasts. They will operate satisfactorily on a 70W HPS ballast here in the UK.

DSC02622.JPG DSC02610.JPG 20181031_132325.jpg 20181031_132350.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_132325.jpg
Album name:sox35 / Mercury Vapour lamps
Keywords:Lamps
File Size:308 KB
Date added:Oct 31, 2018
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Date Time:2018:10:31 13:23:25
DateTime Original:2018:10:31 13:23:25
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sox35
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Mainly the electrical side of things


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Oct 31, 2018 at 08:14 AM Author: sox35
Ok, so just run up one of these on a 70W HPS ballast, the lamp voltage seems to have settled somewhat higher than quoted, at 145V, should I be concerned..? Our mains voltage is slightly higher than normal at 245V, but this is still within specifications.

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

Daniel f
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in my house is not used led and if I can avoid it


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Oct 31, 2018 at 08:25 AM Author: Daniel f
If you overfeed the voltage you are killing your bulb. It reduces its useful life. 130 to 140 you can already see the brightness very intense. I tested a 120v bulb and connected it to 230v and it was half use. about 3 minutes were enough to destroy it.
sox35
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Oct 31, 2018 at 08:28 AM Author: sox35
It is a mercury lamp not an incandescent, the most important factor is the current the lamp takes. I haven't measured it yet, will try that later.

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

Daniel f
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in my house is not used led and if I can avoid it


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Oct 31, 2018 at 08:35 AM Author: Daniel f
I do not understand so much about discharge lamps. better to stay short than to survive. In this will be similar, it is best to adapt the voltage as much as possible to the lamp. This type of bulbs are not adjustable or if?
sox35
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Oct 31, 2018 at 08:42 AM Author: sox35
The most important thing for a discharge lamp is current. The ballast should deliver the correct current for the lamp; the voltage will change as the lamp warms up and should settle at the correct value. Discharge lamps are negative resistance devices; if unchecked by a ballast, the current will rise until the lamp destroys itself.

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

Daniel f
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in my house is not used led and if I can avoid it


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Oct 31, 2018 at 09:04 AM Author: Daniel f
okay. I get it . I bought some osram hwl out of curiosity. they combine discharge with incandescent. I find them interesting too!
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