The AmerTac Indoor Screw-In Full Range Lamp Dimmer 6009B by Westek is a low-voltage dimmer switch that offers full range dimming, from dim to bright, with easy and uncomplicated installation. Designed to be small and fit most light fixtures, this manual dimmer switch is compatible with incandescent bulbs only and can convert lighting to a night light. UL-listed and made with sturdy metal, this switch is the perfect solution for precise light control.