The KBWC-15 is a Solid State AC Motor Speed Fan Control. It is designed for mounting in a 2″ X 4″ electrical wall box. It operates from 115 Volts, 50/60 Hz and has a maximum rating of 5.0 Amps @ 104°F (40°C). The variable speed motor control contains an On/Off line switch and a high gain RFI noise suppression filter. Applications include range hoods, vibrators, humidifiers, fireplace blowers, fans, laminar flow hoods, heat tunnels and stirrers.