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three fixtures with T12 lamps and one with T8 You can see the BIG difference between the rapid start T12 and the electronic ballast T8 here!!! Keywords: Indoor_Fixtures

three fixtures with T12 lamps and one with T8

You can see the BIG difference between the rapid start T12 and the electronic ballast T8 here!!!

image~177.jpg T12andT8.jpg 2011-12-07_00-06-11_312.jpg 2011-12-07_00-06-21_271.jpg 2011-12-07_00-06-43_541.jpg
File information
Filename:T12andT8.jpg
Album name:Jace the Gull / General Light Fixtures
Keywords:Indoor_Fixtures
Filesize:271 KiB
Date added:May 07, 2012
Dimensions:1500 x 2000 pixels
Displayed:187 times
Color Mode:Normal
Color Space:sRGB
Contrast:Standard
DateTime Original:2012:02:16 17:00:32
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/30 sec
FNumber:f/3.3
Flash:Flash, Auto-Mode
Focal length:4.4 mm
Focus Mode:Auto
ISO:100
Light Source:Unknown: 4
Make:Panasonic
Max Aperture:f/3.3
Model:DMC-ZS5
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=11635
Favorites:Add to Favorites

Comment 1 to 6 of 6
Page: 1

TiCoune66   [May 07, 2012 at 09:04 PM]
"The new generation of T8 fluorescent tubes and electronic ballasts is way more efficient than the old T12 technology!"

*Looks at the pic* Mmmm... yeah
GullWhiz   [May 07, 2012 at 09:35 PM]
I also posted the pic for this post DOR123 made he claims the American T8 are dimmer than the T12s and says it has same materials inside....I am not sure where he gets that, but he hasn't been to America to see the proof....
streetlight98   [May 07, 2012 at 09:39 PM]
In terms of lumens, F40T12 lamps give more (full wattage lamps at least). These are probably crappy 34W T12s. T8's do seem brighter even though they're not labeled as high in lumens. BTW; Jace did you get my PM?
joe_347V   [May 07, 2012 at 10:43 PM]
I think it really depends on the phosphor type and drive current. Razz
A_lights   [May 08, 2012 at 02:21 AM]
Yeah compare a full power .8amp magnetic RS ballast with triphosphor F40T12s or T10 to a normal light output instant start T8, the T12 may be brighter! Plus with frequently started applications the T12 is gonna outperform
rapidstart_12   [Jul 30, 2023 at 07:16 PM]
They are comparing old-school halophosphate T12s to tri-phosphor T8s. Halophosphate F32T8s are not nearly as bright as halophosphate F40T12s, and tri-phopshor F40T12s are much brighter than tri-phosphor F32T8s.

Comment 1 to 6 of 6
Page: 1
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