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Narva NF80 can be bright ... with 400W HPS ballast

Narva NF80 can be bright ... with 400W HPS ballast

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I'm big fan of bright Mercury lamps. Sadly I've got many Narva lamps which aren't really. Well they are used but with a little piece of ballast it can light bright again.
Don't know how long, but for an hour ok.
I measured voltage in time and ampere level. Also differences in arc size and coiting state.
After 5 min. the coating on top was burnt away.
(It's not a rare lamp- so no worry ;-) )

DSC01379lg.jpg DSC01373lg.jpg DSC01351lg.jpg DSC01353lg.jpg

Light Information

Light Information

Manufacturer:NARVA
Model Reference:NF
Lamp
Lamp Type:MV
Base:E27
Service Life:probably not high anymore
Optical
Lumen Output:now higher than ever
Physical/Production
Factory Location:GDR
Fabrication Date:1989
Application/Use:streetlighting / my house

File information

File information

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Filename:DSC01351lg.jpg
Album name:magslight / lamps
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Keywords:Lamps
File Size:542 KB
Date added:Oct 21, 2020
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Date Time:2020:10:20 15:52:12
DateTime Original:2020:10:20 15:52:12
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