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Tungsram F58T8 NOS CW fluorescent tube. (Click on image to enlarge for detailed look)

Tungsram F58T8 NOS CW fluorescent tube. (Click on image to enlarge for detailed look)

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Today in my homecenter I found 6 of these NOS Tungsram F58T8 tubes put neatly in a bunch twisted with wire near the appliance and discharge lamp recycling bin. At first, as I saw them in a distance next to the last checkout register, I momentarily went into a joy induced cardiac arrest because I thought they were T12, but upon closer inspection they turned out to be T8s. . . Now don't get me wrong, NOS Tungsramn T8s 5 footers made in early 2000s are still a pretty nice gem, but ya know, everyone likes more T12s rather than T8s. In total there were 4 Daylight F58T8 ones and 2 Cool white F58T8 ones.
These tubes are quet nice tubes. First of all, they are very bight. In the picture they look mercury starved, but all T8 tubes has this wavy arc in the middle when turned on, it goes away as the tube warms up. Also, one thing I noticed, the Cool white ones were not so much Cool whites, but the light resembled more Full daylight, like 5000k but with a slight tinge of lemon yellow in the undertone, more like 4800k witch I think is very cool, because I fell in love with this color. I compared this tube with a regular Tunsgram Cool white F36T8 and it looked much more yellow than F58T8 one, so my suspicions were correct - This tube has the special blend of phosphors that makes it very warm full daylight. You can even see in the pictures that it does not look like normal CW tube, it looks much more white, like Duro-test's vita-lite, but with a tinge of yellow. Let me know in the comments if you see it too.

Daylight ones I will post a picture because they are some generic pretty dim common daylight tubes that makes everything looks like its in hospital.

IMG_20190211_162553.jpg IMG_20190211_162937.jpg IMG_20190211_163315.jpg IMG_20190201_181150.jpg

Light Information

Light Information

Manufacturer:Tungsram
Model Reference:F33 F58T8
Lamp
Lamp Type:Fluorescent
Filament/Radiator Type:double coil
Base:G13 bipin
Shape/Finish:Tube
Service Life:approx 20k hours
Electrical
Wattage:58w
Voltage:220v
Optical
Lumen Output:High
Lumen Efficacy:Moderate
Color Temperature:sorta warm vita-lite I think somewhere of 4800k
Color Rendering Index:High
Physical/Production
Factory Location:Hungary
Fabrication Date:2003 (??? Please correct me if I'm wrong ???)
Application/Use:For outdoor/indoor lighting

File information

File information

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Filename:IMG_20190211_163315.jpg
Album name:vytautas_lamps / fluorescent tubes T8/T12
Keywords:Lamps
File Size:335 KB
Date added:Feb 11, 2019
Dimensions:2464 x 1142 pixels
Displayed:24 times
Date Time:2019:02:11 16:52:36
DateTime Original:2019:02:11 16:33:15
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Exposure Time:100002/1000000 sec
FNumber:f 1.8
Flash:No Flash
Focal length:3.5 mm
ISO:616
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Model:BV6000S
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