Your review: This timer is perfect for the bath or kitchen. It installs easily. However, one must be sure before ordering that there is a neutral (white) wire in the switch receptacle box. I particularly like the "Hold" feature that allows one to leave the fan on for extended periods of time. It is not automatic like the other buttons, but is the only switch that I found to have this feature. Lights on the switch indicate the operational mode. A god buy at the price.