What energy transformation's in a solar powered calculator?

The energy transformation that is in a solar powered calculator is:

Device: Solar-powered calculator

Input:Solar energy and Chemical energy

Output: Light

There is 2 ways a Solar-powered calculator is worked by: Solar power and batteries. In the batteries there is chemical. On the solar powered calculator there is a little solar panel. The calculator needs light to power it up. If there is no light the batteries would be it's backup. The numbers are shown by light that the power or batteries and solar power would produce.