1.6 mm x 1.6 mm SMD LED, 0.7 mm thickness.
The Hyper Red source color devices are made with AlGaInP on GaAs substrate Light Emitting Diode.
The Green source color devices are made with InGaN on Sapphire Light Emitting Diode.
The Blue source color devices are made with InGaN Light Emitting Diode.