Anybody here an expert on whether the claims by the LED bulb manufacturers are right? That the lumens from led need to be multiplied by 2.2 to get the "perceived" brightness that our eyes see?
Also, so far, the best LED bulbs use 6W for a 60W bulb equivalent. For this manufacturer to get 100W from 4.5W is a major jump forward. Has led design come on that much?
Also, there is a $127 million reward in the states for the manufacturer who comes up with an led 60W bulb replacement with the following conditions
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Efficacy of more than 90 lumens per watt, which exceeds the efficiency of all incandescent and most compact fluorescent sources today, which range from 10 to 60 lumens per watt
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Energy consumption of less than 10 watts as compared to a 60 Watt incandescent.
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Output of more than 900 lumens, equivalent to a 60 Watt incandescent light bulb
*
Lifetime of more than 25,000 hours, which is 25X greater than a typical incandescent bulb
*
Color Rendering Index (CRI) greater than 90, which is a high measure of lighting quality
*
Color Temperature between 2700 – 3000 Kelvin, which is “warm” white light comparable to that of incandescent sources
So far only Philips has submitted a bulb which matches all the conditions which uses 9W so again, I a suspicious of the ocuk bulbs claims of 100W equivalent for only 4.5W.
Also, so far, the best LED bulbs use 6W for a 60W bulb equivalent. For this manufacturer to get 100W from 4.5W is a major jump forward. Has led design come on that much?
Also, there is a $127 million reward in the states for the manufacturer who comes up with an led 60W bulb replacement with the following conditions
*
Efficacy of more than 90 lumens per watt, which exceeds the efficiency of all incandescent and most compact fluorescent sources today, which range from 10 to 60 lumens per watt
*
Energy consumption of less than 10 watts as compared to a 60 Watt incandescent.
*
Output of more than 900 lumens, equivalent to a 60 Watt incandescent light bulb
*
Lifetime of more than 25,000 hours, which is 25X greater than a typical incandescent bulb
*
Color Rendering Index (CRI) greater than 90, which is a high measure of lighting quality
*
Color Temperature between 2700 – 3000 Kelvin, which is “warm” white light comparable to that of incandescent sources
So far only Philips has submitted a bulb which matches all the conditions which uses 9W so again, I a suspicious of the ocuk bulbs claims of 100W equivalent for only 4.5W.
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