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GE_LED

GE_LED

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LED lamp for decoration

led.jpg

Light Information

Light Information

Manufacturer:GE
Lamp
Base:E27
Service Life:17000h
Electrical
Wattage:2
Voltage:230V AC
Current:15,7mA
Optical
Lumen Output:60
Color Temperature:2900K
Physical/Production
Dimensions:88,5mm(L)*47mm(D)
Factory Location:China
Fabrication Date:2011
Application/Use:For decoration

File information

File information

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Filename:led.jpg
Album name:Mk48 / LED and other
Rating (1 votes):
Keywords:Lamps
File Size:41 KB
Date added:Jan 27, 2012
Dimensions:745 x 593 pixels
Displayed:143 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-62168
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Andy
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Jan 27, 2012 at 03:18 PM Author: Andy
I thought LEDs were meant to be efficient!
30lm/w is absolutely terrible.

My main area of interest is vintage fluorescent and mercury lamps. Always interested in doing lamp trades - just let me know! Smiley

Dave the lighting guy
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Jan 27, 2012 at 03:28 PM Author: Dave the lighting guy
and then the goverment wonder why no ones using it. theyre forcing us to use stuff thats worse than older stuff. A) its expensive, B) its cheap and liable to burn your house down, C) its fail assured and D) its nowhere near as bright
f36t8
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Jan 27, 2012 at 03:37 PM Author: f36t8
@Vicar: Don't forget that the efficacy of incandescent lamps decrease significantly at low power levels. So compared to the kind of lamp that this one is intended to replace, 30 lm/w isn't terrible. Consider that a 15 W 230 V incandescent gives 100 lm, so to make a 1000 h 230 V lamp that outputs 60 lm, it would have to use at least 0,60 * 15 W = 9 W, nearly five times more..
rjluna2
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Robert


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Jan 27, 2012 at 08:29 PM Author: rjluna2
Here is similar General Electric LED bulb in my collection posted at General Electric Energy Smart LED with a half watt more and 20 lumens more than this one

Pretty, please no more Chinese failure.

Medved
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Jan 28, 2012 at 02:20 AM Author: Medved
There are few things playing a role:
- The ballast efficiency
- Desired color spectrum (warmer, better quality light, rich in long wavelength red's would always give worse lm/W then colder, lower CRI light with no emission beyond the yellow)
- The LED chip itself and it's rating vs driving power: Operating "2W" at 2W give ~30% less light then using "4W" for the same 2W power input. But the second chip's would cost nearly twice as much....

No more selfballasted c***

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