Effective laser therapy administration is a direct function of power of the laser light and dose delivered. Administering the optimal treatment dose to patients produces consistent positive outcomes. Class IV therapy lasers provide a deeper depth of tissue penetration and ultimately provide a dose that results in positive reproducible outcomes. Higher wattage also results in faster treatment times and provides results unachievable with low wattage lasers. These lasers provide a level of versatility unrivaled by other Class I, II, and IIIb lasers due to their ability to treat both superficial and deep tissue conditions.