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Graphene Light Bulbs Coming To Stores Soon

Posted by Soulskill on from the double-as-a-minature-space-elevator dept.

An anonymous reader writes: A light bulb made from graphene — said by its UK developers to be the first commercially viable consumer product using the super-strong carbon — is to go on sale later this year. The dimmable LED bulb with a graphene-coated filament was designed at Manchester University, where the material was discovered in 2004. It is said to cut energy use by 10% and last longer owing to its conductivity. It is expected to be priced lower than current LED bulbs, which cost about £15 (~$22) each.

2 of 169 comments (clear)

  1. LED ... filament? by Anonymous Coward · · Score: 5, Insightful

    Huh?

  2. What they are probably meaning: by queazocotal · · Score: 5, Informative

    http://optics.org/news/6/2/6
    http://www.nature.com/nmat/jou...

    The writer of the original article should be shot, hung, shot, and then boiled.

    It is riddled with so many inaccuracies that it's meaningless.
    '10%' - yes - 10% is mentioned ' Our first devices already exhibit an extrinsic quantum efficiency of nearly 10% and the emission can be tuned over a wide range of frequencies by appropriately choosing and combining 2D semiconductors'
    But going from that to LED efficiency is ridiculous.

    It is comedically ridiculous to claim that it's going to result in products this year.

    It's worth noting that the best existing 'warm white' LEDs bulbs can already produce about twice as much light per watt as compact florescent.
    (if they are made with around double the normal number of LEDs and a more efficient power supply).