All type of LED of different size are available here.
Some kind of LED:
Gallium Arsenide (GaAs) – infra-red.
Gallium Arsenide Phosphide (GaAsP) – red to infra-red, orange.
Aluminium Gallium Arsenide Phosphide (AlGaAsP) – high-brightness red, orange-red, orange, and yellow.
Gallium Phosphide (GaP) – red, yellow and green.
Aluminium Gallium Phosphide (AlGaP) – green.

LED's