It's palm-sized with a single blue LED light indicating a connection, but honestly you don't ever need to look at it: it doesn't need line-of-sight to your handset because it uses a wireless protocol called WiFi Display, which means you can happily leave it dangling out of the way behind your TV.

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Generally LED bulbs use either a combination red, green and blue LEDs to create white light, or they use a phosphor coating (more common) in combination with a blue LED.

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The headlights have blue laser light technology that is 1, 000 times more intense than LED.

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The company was founded by three people in 2008, including Shuji Nakamura, a scientist who invented the blue LED that is the key component for creating the bright, white LED light.

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