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70W High Pressure Sodium lamps These are two 70W Philip HP sodium lamps SON/T and SON versions. The SON is quite an early entry to the Philips 70W range. It has an internal glow-bottle starter and a bi-metal strip to disengage it from operating while the lamp is still hot. The SON/T version requires an external ignitor but has an internal wire to aid starting. This is removed from the arc tube surface by the bi-metal strip when running. Keywords: Lamps

70W High Pressure Sodium lamps

These are two 70W Philip HP sodium lamps SON/T and SON versions. The SON is quite an early entry to the Philips 70W range. It has an internal glow-bottle starter and a bi-metal strip to disengage it from operating while the lamp is still hot. The SON/T version requires an external ignitor but has an internal wire to aid starting. This is removed from the arc tube surface by the bi-metal strip when running.

PH_SON_1k.jpg sunlux220s.jpg series.jpg LU400_TD.jpg SON60.JPG
Lamp/Fixture Information
Manufacturer:Philips
Model Reference:SON
Lamp
Lamp Type:High Pressure Sodium
Filament/Radiator Type:sintered aluminium oxide
File information
Filename:SON60.JPG
Album name:Tuopeek / High Pressure Sodium
Keywords:Lamps
Filesize:300 KiB
Date added:Jul 25, 2024
Dimensions:2000 x 2247 pixels
Displayed:12 times
DateTime Original:2024:07:25 20:33:38
Exposure Time:1/250 sec
FNumber:f/5.6
File Source:Digital Still Camera
Flash:No Flash
Focal length:40 mm
ISO:250
Model:NIKON D3400
Software:Adobe Photoshop Elements 2.0
White Balance:0
URL:https://trad-lighting.net/gallery/displayimage.php?pid=107
Favorites:Add to Favorites

Comment 1 to 2 of 2
Page: 1

Sammi   [Jul 25, 2024 at 09:27 PM]
Nice addition, thanks.! Cool
Max   [Aug 11, 2024 at 10:22 AM]
The left one (SON/T 70W) is quite interesting. It has a transitional design between the old one (barium getter and wire antenna) and the new (last) one (pellet getter and sintered antenna).

Comment 1 to 2 of 2
Page: 1