【Single Pole & 3 Way】This slide dimmer switch can be used in single pole or 3-way applications, satisfying all your requirements. REMINDER: Please use ONLY ONE dimmer in a three way circuit, the other three way switch will turn the light on at the brightness level selected at the dimmer. 【Universal Compatiblity】Compatibility with incandescent light bulb 600W, dimmerable CFL 150W, dimmerable LED 150W. Adjustable initial brightness setting for different type of lights, and preset the minimum brightness of the light. 【Full dimming range】The wall-mounted dimming switch provides a range from off to full brightness and every level in between. The smooth vertical sliding control allows you to find the right brightness with just one swipe, allowing anyone to adjust the lighting on the wall at any time. 【Faster & Easy Installation】No Neutral Wire Required. Faster & easy installation with detailed installation manual. 【Fade On】 Lights fade up smoothly, allowing your eyes to adjust to the new light level. Reduce the current at the moment of turning on the light, so to prolong the service life of the bulbs and dimmer. Energy saving and long operating life. UL & CUL listed. AIDA Toggle Slide Dimmer Switch for Dimmable LED Light/CFL/Incandescent 600 Watt max, Single-Pole or 3-Way, Rocker On/Off Wall Switch with Dimmer Slider, Wall Plate NOT Included, UL Listed, 2 Pack