The Lutron Maestro Timer Switch for Fans and Lights is rated to work with up to 150W of LED bulbs, 600W ELV/Incandescent/Halogen, 450W MLV, or 3A general purpose fans. The Maestro Timer Switch requires a neutral wire making it suitable for DC and high efficiency exhaust fans. The Maestro Timer Switch is compatible with 3-way/multi-location switching applications; Lutron Accessory switches are required (MA-AS/MSC-AS). Use up to 9 Lutron Accessory switches with one Lutron Maestro Timer Switch; existing 3-way switches are not compatible. The Maestro Timer switch completes any project and matches the Maestro aesthetic for areas that don't require a Maestro dimmer or sensor. Save energy by using the Maestro Countdown Timer in closets, attics, bathrooms, and other low-traffic areas to ensure a light or fan is never left on for a long time. Use the large tap switch to turn the timer on, or double tap for always on; use the raise/lower buttons on the side to adjust to the desired time-out option ranging from 5-60 minutes. Softly lit orange lights indicate the time remaining before turn-off. Top green LED indicator light labeled ON, has no time limit. The bottom LED blinks rapidly to indicate one minute of time remaining. Available in 10+ colors. Pairs perfectly with Lutron Claro wall plates for consistent color matching (sold separately).