Saturn does not generate its own star light, but instead reflects the light of our sun. At 9 AU, 1/9^2 as much solar energy reaches Saturn as Earth. That is a little more than 1%.
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Saturn's light is reflected Sunlight.
The sky on Saturn appears blue due to the scattering of sunlight by methane gas in its atmosphere.
The bright type of sunlight
Saturn's primary source of light is the Sun. The Sun illuminates Saturn just like it does the other planets in our solar system. Additionally, Saturn's rings and moons also reflect sunlight, adding to the brightness of the planet.
Jupiter is hotter than Saturn. Jupiter has extreme heat due to its strong internal heat source, while Saturn's atmosphere reflects and scatters more sunlight, resulting in cooler overall temperatures.