Forum:Why aren't the lanterns powered and charged by yellow element, if yellow element is so powerful compared to green element?

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I have recently started watching Green Lantern related films, movies, and shows, because I enjoy superhero related stories. I started wondering why the lantern corps are fueled by green element. If the guardians created the Green Lantern Battery, knowing that it had a weakness against yellow element, why didn't they just create a Battery powered by yellow element instead?