Hyper Cheap LED Bulb - worth the pain?

children of the future wont know the fun in smashing old tubelights and bulbs :p[DOUBLEPOST=1468593525][/DOUBLEPOST]
anuragingle said:
I dont know wether its my perception or my thinking but i find the light quality from the old fashioned tubelights to be better than led\cfl specially for reading, i find reading with a tubelight less strainfull than reading under a led\cfl, anybody else experienced this?
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Could it be because LEDs pulse light while tubelights are constant light ?
 
RakaKaKaka said:
Could it be because LEDs pulse light while tubelights are constant light ?
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I always thought it was the other way around, tubelights have the "pulse" or flickering (can't really see it with naked eye) and that is supposed to cause eye fatigue (I never felt this though) but LEDs are solid/constant light source - anyone has any pointers?
 
vishalrao said:
I always thought it was the other way around, tubelights have the "pulse" or flickering (can't really see it with naked eye) and that is supposed to cause eye fatigue (I never felt this though) but LEDs are solid/constant light source - anyone has any pointers?
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leds are pulsing light for sure , they are not constant 100% . you can wiki about it
 
Was browsing through some LED bulbs and some of the claims seem far fetched like 3W LED=25W CFL, how much truth is there in this claim? Those of you using LEDs hows the quality of light, specially for reading?
 
I use LEDs throughout my house now. Not a single CFL/Tube left in the house. A 15W LED is the equivalent of a T5 tube and better than a 22W CFL IMO.

That being said, LED lighting doesn't 'spread'. Its kinda focused... So, if you are replacing say a 20W CFL, I would recommend 2 x 8W LEDs on two opposite walls rather than 1 x 15W on one wall.
 
anuragingle said:
Was browsing through some LED bulbs and some of the claims seem far fetched like 3W LED=25W CFL, how much truth is there in this claim? Those of you using LEDs hows the quality of light, specially for reading?
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For comparisons, you should be looking at the lumen output. That way you can accurately (more or less) gauge the brightness that can be expected. So for instance, a regular fluorescent bulb that's a 100 watt will output about 1400-1600 lumens. Buying a cfl or led that matches the same lumen output should ensure that the perceived brightness is in the ball park.

http://lumennow.org/lumens-vs-watts/

As for the quality of light, the differences are probably because of the fact that leds are essentially spot / point / unidirectional lights. The led fixtures use reflectors / diffusers to "spread" the light, the efficacy of which is debatable.

http://www.bijlibachao.com/lights/comparing-led-lights-with-fluorescent-lights.html

http://lumald.com/2013/05/29/leds-not-always-the-answer/

HTH.

Note - I'm not talking from personal experience. Rather just providing info which I've acquired over the internet.
 
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