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Doug.Leeper
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re: Born in the USA: Philips’ L-Prize LED bulb
Doug.Leeper   6/22/2013 4:09:24 AM
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Well, Philips has now quietly taken the bulb out of production, and never got to volume production to drop the price, nor attempted to drop the price to increase adoption. Sad.

_hm
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re: Born in the USA: Philips’ L-Prize LED bulb
_hm   9/5/2011 12:50:07 PM
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I like to know progress from other vendors - GE to be specific. This scientific testing is very good, however, did they established test crtiteria for human response to this LED lamp? (CRI) is one of them). Is EETimes is going to conduct investigation of inside this Philips LED bulb?

Trambasek
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re: Born in the USA: Philips’ L-Prize LED bulb
Trambasek   9/5/2011 12:25:07 PM
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Sanjib - There is a requirement for cost. It is to be 22 dollars in the first year and dropping to 8 dollars by year 3. The lifecycle cost of the bulb will be lower than for CFL based on the long life of 25+ years.

Sanjib.A
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re: Born in the USA: Philips’ L-Prize LED bulb
Sanjib.A   8/21/2011 7:04:15 AM
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Some of the questions I have: -Was there a L-prize requirement for the cost? -When is this expected to be available commercially and what is the price? -How does the cost-benefit for the LED bulb compare with the same for CFL?

elctrnx_lyf
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re: Born in the USA: Philips’ L-Prize LED bulb
elctrnx_lyf   8/18/2011 2:56:51 PM
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Thanks for the detailed technical details for the L-Prize. Philips new bulb is definitely deserve to win this L prize.

LarryM99
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re: Born in the USA: Philips’ L-Prize LED bulb
LarryM99   8/16/2011 5:22:51 PM
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It's very tempting to try to do head-to-head comparisons between CFL and LED technologies, but I would think that the real win with LED is new form factors for lighting. Why are we still forcing new technologies into 120 VAC screw-in sockets instead of looking at alternatives? Area lighting via panels and pinpoint beams in appropriate places are two possibilities that come to mind right away. Larry M.

DrQuine
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re: Born in the USA: Philips’ L-Prize LED bulb
DrQuine   8/16/2011 1:55:38 PM
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I find it interesting that current CFL bulbs replacing 60W incandescent bulbs start virtually instantly while those replacing 75+ watt bulbs can take minutes to come up to full power. Is this because prizes were offered for 60 watt (but not 75 watt+) replacement bulbs? Will we see similar dramatic differences in performance of LED bulbs between 60W and 75W incandescent replacement bulbs?



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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