Return to the thumbnail page Display/hide file information See previous file See next file

Osram-L 20W/25 fluorescent tube

Osram-L 20W/25 fluorescent tube

Click to view full size image

Very interesting is, that the Osram L20W tube doesn't have the typical cathode shielding.

IMG_20190702_202650.jpg IMG_20190702_201313.jpg IMG_20190702_181618.jpg IMG_20190702_180428.jpg

Light Information

Light Information

Manufacturer:Osram
Model Reference:L-20W/25
Lamp
Lamp Type:Fluorescent lamp
Filament/Radiator Type:Shielded cathodes
Base:G13
Shape/Finish:T12 coated
Service Life:7500h
Electrical
Wattage:20W
Voltage:60V
Current:0,35 A
Optical
Lumen Output: 1000 lm
Lumen Efficacy:50lm/W
Color Temperature:4200k
Color Rendering Index:>70
Physical/Production
Dimensions:38mm x 600mm
Factory Location:Germany
Assembly Line:Berlin Charlottenburg Werk S
Fabrication Date:January 1965
Application/Use:Industrial lighting, office lighting

File information

File information

Download: Download this File
Filename:IMG_20190702_181618.jpg
Album name:The Lightman / Fluorescent Lamps
Keywords:Lamps
File Size:128 KB
Date added:Jul 02, 2019
Dimensions:1232 x 2464 pixels
Displayed:32 times
Date Time:2019:07:02 18:16:19
DateTime Original:2019:07:02 18:16:19
Exposure Bias:-0.9 EV
Exposure Time:20000000/1000000000 sec
FNumber:f 2.2
Flash:No Flash
Focal length:3.46 mm
ISO:100
Make:HUAWEI
Model:LLD-L31
Software:LLD-L31 8.0.0.144(C432)
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-161299
Favorites:Add to Favorites
Comments
TL buis
Newbie
*
Offline

Gender: Male
Posts: 11
View Gallery

View Profile Personal Message (Offline)
Jul 07, 2019 at 01:32 AM Author: TL buis
Never seen this versions.. ost of time with shielding. Other side as well??
monkeyface
Full Member
***
Offline

Gender: Male
Posts: 149
View Gallery


View Profile Personal Message (Offline)
Jul 07, 2019 at 01:39 AM Author: monkeyface
Early Osram tubes like this did have a shield in the front of the electrode instead of a ring like Philips and this tube seems to have this when looking at this photo.
© 2005-2019 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery