However, the use of such a low-energy-density light as an energy source requires the processes which transform it into electric or chemical energy.
(the use of such a low-energy-density light as an energy source; requires; the processes which transform it into electric or chemical energy) (the processes; transform; it; into electric or chemical energy)
the use of such a low-energy-density light as an energy source the processes
requires transform
the processes which transform it into electric or chemical energy
it into electric or chemical energy