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What is LED? How does LED emits light?

Light Emitting Diode(LED) is a type of diode that emits light when a current flows through the diode.

LEDs emit light by the movement of electrons and holes between the P-type and N-type of the semiconductor.

Which product do you sell?

DOWA is selling LED bare chips from 660nm to 1,650nm wavelength. And we can develop other wavelength which are not listed on our products. 
If you prefer to get LEDs in package, feel free to contact us.

What is the main materials of LED?

Depending on the wavelenght, we are using variety of substrate.
Gallium arsenide (GaAs): 600nm~1,070nm
Indium phosphide (InP): 1,000nm~1,650nm
Indium gallium arsenide(InGaAs)/Gallium antimonide(GaSb): 2,000nm~5,000nm

Where do I get DOWA’s LED? How long does it take from order to delivery?

We have inventory of main products in our warehouse.
For more detail, please contact us.

If DOWA’s LED doesn’t match your requested specification with data on website.

Please contact us, we are happy to help you.

Contact us

Japan(Head Office) +81 3-6847-1253
China +86 755-2160-7358
USA +1 408-236-7560
EU +49 911-56989-3203