Claim: Sun Boy, whose powers revolve around using solar energy, is a DC superhero created by Jerry Siegel and Jim Mooney.
Evidence: Heat and light generation
Immunity to heat and radiation Sun Boy (real name Dirk Morgna of the planet Earth) is a Legion of Super-Heroes member with the ability to unleash internal solar energy to whatever degree he wishes, from enough to light a single candle to enough to melt nearly any obstacle. Jerry Siegel
Jim Mooney DC Comics