CONVENIENT - combination switch for fan and light loads. Sensor automatically activates bath fan based on the humidity level. Manually press for immediate ventilation needs, separate light switch for mirror light, shower light, towel warmer or heater EASY TO INSTALL - slim profile fits in most wallboxes. Fan Load: (Blue Wire): 1/4 HP Fan, 300W LED/CFL, 600W Inc/Halogen, 400VA MLV/ELV. Light Load (Red Wire): 150W LED/CFL, 250W Inc/Halogen, 200VA MLV, 250VA ELV, 2A Resistive FLEXIBLE - for homes new or old, can be installed with or without a neutral wire. A ground wire is required for installation PRACTICAL - designed to replace an existing combination light switch or used in smaller spaces where space does not permit multiple switches. Perfect in areas prone to humidity like bathrooms, basements, laundry rooms and spas to help eliminate moisture STYLISH - easily change the color using DHDKT faceplate color change kit, available in white, ivory, light almond, gray, black and brown