These can be made to emit white light by coating the device with a phosphor compound that absorbs part of the blue light and re-emits it as yellow.

ECONOMIST: Lighting: A brilliant new approach | The

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.

ENGADGET

The White version of the device has an industry-first Teflon coating (right, just like your pans) to keep things clean and grime free.

ENGADGET: HTC Hero running Android and Sense UI leaks from HTC's own website (updated, official, video)

We learned that the first units out of the door will look a little different to these samples, the white version gaining a glossy finish, while the black edition coming with a matt rubber coating.

ENGADGET: Thermaltake and BMW's Level 10 M gaming headset hands-on