Solar cells refer to electricity/power. They produce DC which can be used directly via a solar cell regulator to load e.g. an accumulator. We do not have products concerning solar cells since we have chosen to focus on thermal solar energy.
Solar collectors refer to thermal solar energy. When the sunlight strikes a material it will be absorbed and transformed to heat.
Solar collectors absorb the sunlight three times more than solar cells!
The price for a solar collector is 3-4 times lower than for solar cells!