The Infratech INF Input Regulator, available for 240V or 120V, offers more precise control over your single element heater up to 3,000 watts (or 15 amps). This device is not a dimmer; When operating below full power, the regulator quietly cycles the heater on and off according to evenly timed intervals. This allows you to conserve energy while also maintaining optimal warmth in your backyard. Each heater must have its own regulator, which includes in-wall (for indoor, protected outdoor, or exposed outdoor areas) and weatherproof surface mount configuration options.