Lutron S-600PEH-WH Skylark Eco-dim 600W Preset Dimmer White Save 15% instantly and even more as you dim Extend the life of your bulb by a minimum of 3 times their rated life Dim the lights just 50% to save 40% electricity and extend bulb life 10 times Designed for use with incandescent or halogen bulbs Installs in as little as 15 minutes - just like a standard switch