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Atlas (American Sylvania made) F40T12 tube While british lamp manufacturers listed blacklight blue lamps in their cataloge no examples that are actually made in the UK are known. This leads me to beelive, that these lamps were sourced by other manufacturers. I was pleased when i found this particular example of an atlas branded lamp. What intreaged me was that it was a T12 tube which i don’t have yett. Also very interesting is, that it was made in the USA. I suspect by Sylvania as both companies worked together and shared knowledge. This brings me one step further in getting all thorn/atlascoulours in 4 foot tubes.

Atlas (American Sylvania made) F40T12 tube

While british lamp manufacturers listed blacklight blue lamps in their cataloge no examples that are actually made in the UK are known. This leads me to beelive, that these lamps were sourced by other manufacturers. I was pleased when i found this particular example of an atlas branded lamp. What intreaged me was that it was a T12 tube which i don’t have yett. Also very interesting is, that it was made in the USA. I suspect by Sylvania as both companies worked together and shared knowledge.

This brings me one step further in getting all thorn/atlascoulours in 4 foot tubes.

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Filename:IMG_1379.jpeg
Album name:Alex / UV and IR sources
Filesize:2983 KiB
Date added:28 Jun, 2026
Dimensions:1536 x 2048 pixels
Displayed:154 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=25163
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Comment 1 to 5 of 5
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Beta 5   [28 Jun, 2026 at 08:46 PM]
Very nice indeed. That must be incredibly rare now, guessing this would be a 1960's lamp?
Andy   [29 Jun, 2026 at 10:10 AM]
That’s a very nice find, I don’t recall seeing an Atlas branded BLB before! As you say, it’s likely this is a Sylvania made tube. Where did you get it?
Lightbulbfun   [30 Jun, 2026 at 02:14 AM]
very nice find! I have only ever seen a singular 2ft example of one of these before now Smile it should be noted that small T5, at least 4W T5 Woods glass tubes where made by Mazda in the UK (for the Vulcan bomber), but I dont think anything T8 or T12 size ever was Smile
Flurofan96   [28 Jul, 2026 at 09:21 PM]
Seems like for non Chinese made blacklight T12 and T8 tubes, the Americans have always made it for us Smile
Alex   [29 Jul, 2026 at 08:29 AM]
Well T12 I know by the american brands and with them the GE is the most common here. Philips also made its own T12. Osram bought its BLB lamps from Philips and Narva or sylvania. Fist T12 then T8. What i wonder with these lamps, is there a chance that the physical properties of the glass make it necessary to use special process that do not make it viable for every manufacturer to set up production? For the Chinese lamps, I know the Omnilux brand which is dog waste

Comment 1 to 5 of 5
Page: 1

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