 While at first it appeared that a blue ring could only charge a green power ring to twice its maximum power level which could also negatively impact a green ring, as close proximity to the Blue Central Power Battery would overcharge the ring, causing it to implode (taking the user's hand with it), it had been revealed that a blue ring can in fact charge any power ring as long as the users of the blue light wish to.Blue power rings manifest their constructs mainly by reading the target's hopes, but can make wielder-directed constructs like the other corps.In the universe prior to the current one, groups managed to tap into the wellspring of power created by the Emotional Spectrum.