Gallery of Lights


Home Login
Album list Last uploads Last comments Most viewed Top rated My Favorites Search
Home > User galleries > joe_347V > Incandescent/Halogen/LED
Return to the thumbnail page FILE 9/37 Return to start See previous file See next file Skip to end
Commenwealth Edison Bulbs Restore find and actually made by Sylvania. Not sure about the odd wattages though. Keywords: Lamps

Commenwealth Edison Bulbs

Restore find and actually made by Sylvania. Not sure about the odd wattages though.

COL_IMG_2160.JPG IMG_2067M.JPG COL_CIMG_1348.JPG COL_CIMG_1236.JPG COL_P7135612.JPG
File information
Filename:COL_CIMG_1348.JPG
Album name:joe_347V / Incandescent/Halogen/LED
Keywords:Lamps
Company and Date Manufactured:Sylvania
Lamp Type:Incandescent
Filesize:175 KiB
Date added:Mar 03, 2013
Dimensions:1200 x 1800 pixels
Displayed:79 times
Color Space:sRGB
DateTime Original:2013:03:02 20:21:03
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/100 sec
FNumber:f/5.6
Flash:Compulsory Flash
Focal length:27 mm
ISO:800
Make:Canon
Model:Canon EOS REBEL T3
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=15138
Favorites:Add to Favorites

Comment 1 to 7 of 7
Page: 1

GEsoftwhite100watts   [Mar 03, 2013 at 02:32 AM]
The increased wattage ComEd bulbs you see are because apparently that was a trick to make you use MORE electricity I guess Laughing
The 34 watt ones are likely a reduced/california-type wattage energy saver version of 40w bulbs...
streetlight98   [Mar 03, 2013 at 03:15 AM]
you're right Andy. I remember Dave pointing that out to me. Originally i thought they were rough service lamps and the extra wattage was to compensate for lower lumens per watt but nope, just a scam lol. i noticed the lamp life if longer so perhaps they did try to compensate for lower lumens per watt and at the same time sell more electricity? also note the different lumen ratings on the two 41W boxes. Neutral
joe_347V   [Mar 03, 2013 at 03:17 AM]
Actually I've heard others say that it's to compensate for the drop in wattage of an incandescent the tungsten evaporates over time. For example this one start off at 41w but at EOL it's more close to 39w, hence the 40w average watts.
Silverliner14B   [Mar 03, 2013 at 05:01 AM]
nice find! Smile interesting they came all the way to canada.
GEsoftwhite100watts   [Mar 03, 2013 at 03:54 PM]
Yeah, I've also wondered if incandescent bulbs "lose" wattage myself...
But if these were extended-life bulbs with reduced lumen output, the slightly increased wattage would make sense.
joe_347V   [Mar 03, 2013 at 05:28 PM]
Thanks Dave! I was a bit surprised to see them show up in Canada.
rjluna2   [Mar 03, 2013 at 07:25 PM]
Wow! Very Happy This is the first I have seen the energy saver bulb sold via Commonwealth Edison utility company Very Happy

Interestingly, the newer 41 Watts version shows that it has higher lumen than the old 41 Watts version Confused

Comment 1 to 7 of 7
Page: 1
Powered by Coppermine Photo Gallery