The given illustions illustrate the modifications of sunlight panel, and its use.
Overall, it is clear that there are two panels, one for heating air, and the other for heating water.The latter has one extra waterpipe in it.
The first diagram has shown the basic components of the whole system a box, and a trasparent top.In second image it is displayed that the rays of sun are falling on the transparent top.Furthermore, there is a inlet for cool air, and a outlet for warm air.The air inside the box is warmed.
Thirdly, in last photo it is shown that like the air heating process, water heating has all the same components.Sun rays similar to air heating procedure falls on the surface of trasparent top.Additionally there is a water pipe through which the cold water via inlet flows through the box, and goes out from the box by a outlet as a warm water.
