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General Electric Crystal Clear 40 General Electric Crystal Clear 40 Watts Lamp Shape: A19 Voltage: 120 Volts Lumens: 480 Lamp Life: 1500 Hours Factory Location: USA Base: [Medium] (one-inch) Edison Screw (E26) Filament Type: Coiled Coil Keywords: Lamps

General Electric Crystal Clear 40

General Electric Crystal Clear 40 Watts

Lamp Shape: A19
Voltage: 120 Volts
Lumens: 480
Lamp Life: 1500 Hours
Factory Location: USA
Base: [Medium] (one-inch) Edison Screw (E26)
Filament Type: Coiled Coil

P6280350.JPG P4200324.JPG P3040310.JPG PB250284.JPG PB230283.JPG
File information
Filename:P3040310.JPG
Album name:rjluna2 / Incandescent Lamp
Keywords:Lamps
Company and Date Manufactured:GE Lighting, LLC
Model Number:40A/CL
Wattage:40 Watts
Lamp Type:Clear
Filesize:159 KiB
Date added:Mar 05, 2010
Dimensions:640 x 480 pixels
Displayed:234 times
Color Space:sRGB
Contrast:0
DateTime Original:2010:03:04 21:30:56
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/30 sec
FNumber:f/3.1
Flash:Flash, Auto-Mode
Focal length:6.3 mm
ISO:125
Light Source:Unknown: 0
Make:Olympus Imaging Corp.
Max Aperture:f/3.1
Model:FE210,X775
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=1273
Favorites:Add to Favorites

Comment 1 to 7 of 7
Page: 1

TiCoune66   [Mar 05, 2010 at 02:41 AM]
Interesting, 40W Crystal Clear lamps sold at my local Wal-Mart are a little more efficient at 500 lumens. The filament is a single coil if I'm right.
rjluna2   [Mar 05, 2010 at 02:45 AM]
Yep, single coil. I'll update the page.
dor123   [Mar 05, 2010 at 11:14 AM]
I think single coil filaments is less efficient then coiled coil filaments because it run at lower temperature. In any case go to www.lamptech.co.uk and click on the Incandescent lamps section for more information about this.
f36t8   [Mar 05, 2010 at 12:29 PM]
It less efficient because it loses more heat to the surrounding gas (because of more exposed surface area), so it needs more power to maintain a given temperature and thereby light output.
Silverliner14B   [Mar 06, 2010 at 05:18 AM]
Nope it's a coiled coil filament. Single coil filaments are the ones with 3 supports in a horizontal C shape. Vince if yours are 500 lumens they may be 1000 hour instead of 1500 hour.
rjluna2   [Mar 06, 2010 at 04:01 PM]
Probably I didn't take a closer look at the filament. If your expertise is correct, I'll update the page. Thanks Very Happy
TiCoune66   [Mar 06, 2010 at 08:45 PM]
Yes they are 1000 hrs. rated. Same thing for 100W lamps, which are rated at 1470 lm. I have a 4 pack of the 1710 lm Crystal Clear bought several years ago.

Comment 1 to 7 of 7
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