Represent now the deeping reserved for the light diode. Create first a circle, making use of this tool

, and then press the
Alt button and apply the next instrument

. Everything must have the color
C8C6C6.

Blending Options-Inner Shadow

Copy the new created layer two times and place it the way it is demonstrated in the next picture.

Take the known instrument already

and insert another deeping designed for another light diode.
Blending Options-Gradient Overlay
Gradient’s parameters: 
Now we have to draw the light diode itself. Use the same instrument we did before.
Blending Options-Bevel and Emboss