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Thorn 400w SON-TD NOS Double-ended SON lamp with RX7s caps. Very popular in the 1970's. Designed to replace and be used in the same luminaires (with an external gearbox) as 1500w linear halogen lamps such as Thorn's Haline series of fittings. The compactness of this lamp means it can be precisely located very near to the focus of compact ellipsoidal reflectors and thus providing very tight optical control compared with normal single-ended lamps. 2000k 48,000lm 18,000h

Thorn 400w SON-TD

NOS Double-ended SON lamp with RX7s caps. Very popular in the 1970's.

Designed to replace and be used in the same luminaires (with an external gearbox) as 1500w linear halogen lamps such as Thorn's Haline series of fittings.
The compactness of this lamp means it can be precisely located very near to the focus of compact ellipsoidal reflectors and thus providing very tight optical control compared with normal single-ended lamps.

2000k
48,000lm
18,000h

DPP00003084.JPG DPP00003108.JPG DPP00003281.JPG DPP00003310.JPG DPP00003474.JPG
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Filename:DPP00003281.JPG
Album name:FrontSideBus / HID: High-Pressure Sodium
Filesize:455 KiB
Date added:30 Mar, 2016
Dimensions:1920 x 1280 pixels
Displayed:18 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=3490
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Danny   [30 Mar, 2016 at 07:52 PM]
Nice lamps. I've got one of these knocking around
Kev   [30 Mar, 2016 at 08:35 PM]
Got these still in use at Newquay fire station in old thorn flood lights been there since 1978 when the station opened.
FrontSideBus   [31 Mar, 2016 at 11:39 AM]
I'm surprised that they can still get hold of replacement lamps. Do GE still actually make these?

Comment 1 to 3 of 3
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