  In this letter, we present our results on a global fit to precision
electroweak data in a Higgs triplet model. In models with a triplet Higgs
boson, a consistent renormalization scheme differs from that of the Standard
Model and the global fit shows that a light Higgs boson with mass of 100-200
GeV is preferred. Triplet Higgs bosons arise in many extensions of the Standard
Model, including the left-right model and the Little Higgs models. Our result
demonstrates the importance of the scalar loops when there is a large mass
splitting between the heavy scalars. It also indicates the significance of the
global fit.
