Light and base size:
16.5cm high (including base)
34.8cm high in total when the spike is attached to the base although only the light head and base would be above ground.
The solar panel:
23cm wide by 19cm high.
The solar panel is 14cm long with wall mount base attached so would protrude out from a wall 14cm once installed. With the spike attached the solar panel is 34cm high in total although only 16cm of this 34cm would be above ground.