  We consider the possibility of a light composite scalar boson arising from
mass mixing between a relatively light and heavy scalar singlets in a see-saw
mechanism expected to occur in two-scale Technicolor (TC) models. A light
composite scalar boson can be generated when the TC theory features two
technifermions species in different representations, $R_1$ and $R_2$, under a
single technicolor gauge group, with characteristic scales $\Lambda_1$ and
$\Lambda_2$. We determine the final composite scalar fields, $\Phi_1$ and
$\Phi_2$, effective theory using the effective potential for composite
operators approach. To generate a light composite scalar it is enough to have a
walking (or quasi-conformal) behavior just for one of the technifermions
representations.
