Home > Lamps > Discharge Lamps > Low Pressure Sodium
Click to view full size image

GEC 85w SOI/H Lamp

Philips_180w_SOX.JPG Philips_26W.jpg DSCF3097.JPG DSCF3095.JPG Thorn_55w_SOX.JPG
File information
Filename:DSCF3097.JPG
Album name:Low Pressure Sodium
Run-Up Time :Took about 15 minutes to warm up.
Date / Code:ED date code
Filesize:997 KiB
Date added:Jan 13, 2015
Dimensions:1600 x 1200 pixels
Displayed:80 times
URL:https://allthingslighting.co.uk/atl/displayimage.php?pid=20480
Favourites:Add to Favourites

Comment 1 to 4 of 4
Page: 1

Linear_SLI   [Jan 13, 2015 at 08:58 PM]
It is nice to see the early lamps running, theres not that many photos of SO and SOI lamps running today.
James   [Jan 23, 2015 at 08:44 PM]
It looks especially good at this stage when the sodium at the centre of the tube just begins to vaporise and become envloped in its yellow glow
Jay   [Jan 24, 2015 at 03:34 AM]
Great picture! . Whats a SOI though? Never heard that one before.. (Looks SOX-ish in the picture)
Zelandeth   [Jan 24, 2015 at 04:17 PM]
SOI stood for SOdium Integral. It was the immediate predecessor to SOX, using a single piece lamp rather than the separate dewar jacket used on the earlier SO/H lamps. Usually one or two extra internal glass sleeves were used for thermal insulation rather than the IR reflective coating on SOX lamps.

Comment 1 to 4 of 4
Page: 1

Add your comment
Anonymous comments are not allowed here. Log in to post your comment