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Westinghouse F14T12 Here is one of the three Westinghouse F14T12 cool white lamps from Mike (streetlight98). Made in: USA Keywords: Lamps

Westinghouse F14T12

Here is one of the three Westinghouse F14T12 cool white lamps from Mike (streetlight98).

Made in: USA

DSC06278.JPG DSC06402_CH_Lighting_F4T5_BL.JPG DSC06637_Westinghouse_F14T12.JPG DSC06635_GE_Sylvania_F14T12.JPG DSC02937_Philips_F17T8.JPG
File information
Filename:DSC06637_Westinghouse_F14T12.JPG
Album name:lite_lover / Fluorescent Lamps
Keywords:Lamps
Company and Date Manufactured:Westinghouse
Model Number:F14T12/CW
Wattage:14W
Lamp Type:Fluorescent
Filesize:63 KiB
Date added:Feb 23, 2014
Dimensions:1024 x 768 pixels
Displayed:74 times
Color Space:sRGB
Contrast:0
DateTime Original:2014:02:21 22:27:02
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/8 sec
FNumber:f/2.8
Flash:No Flash
Focal length:7.9 mm
ISO:100
Light Source:Unknown: 0
Make:Sony
Max Aperture:f/2.8
Model:DSC-W1
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=17057
Favorites:Add to Favorites

Comment 1 to 7 of 7
Page: 1

streetlight98   [Feb 23, 2014 at 02:38 PM]
Glad you like them! Wow only 6000 hours? I wonder what the date of these lamps is. I'm not too good with fluorescent date codes.
lite_lover   [Feb 23, 2014 at 06:38 PM]
Oops,should be 7500 hours + , I'm not sure what the date is either, these must be from the 70's.
streetlight98   [Feb 23, 2014 at 10:52 PM]
ahh. I find it funny how the T8s are rated for 2800 when the T12s seem to always outlast them. It's those horrid electronic IS ballast. Mad

Yeah I was thinking 70s too.
joe_347V   [Feb 23, 2014 at 11:06 PM]
I wonder if the 7500 hr rating is for preheat on trigger start ballasts. Normally lamps last longer when on a trigger start ballast.
streetlight98   [Feb 23, 2014 at 11:33 PM]
Hmm I wonder that too. It's probably a best-situation rating. Like how F32T8s are rated for 28000 hours. Yeah, i don't think so. The full mercury ones MAYBE, but the eco-Crap out there now? Forget it...
joe_347V   [Feb 23, 2014 at 11:58 PM]
And they have to be running on either a programmed start or a rapid start ballast to have any chance at reaching 28000 hoours.
streetlight98   [Feb 24, 2014 at 12:12 AM]
yeah. I wonder if they could invent an IS ballast that start off with a lower OCV and the OCV increases a few seconds after starting. I wonder if that would be enough to help increase life?

Comment 1 to 7 of 7
Page: 1
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