a menaquinol + 2 H(+)(out) => H2 + a menaquinone + 2 H(+)(in)
a menaquinol + 2 h(+)(out) => h2 + a menaquinone + 2 h(+)(in)
a menaquinol + 2 H(+)(out) => H2 + a menaquinone + 2 H(+)(in)
a menaquinol + 2 h(+)(out) => h2 + a menaquinone + 2 h(+)(in)