I just did a google search "LED dimmer" and found these...
http://www.ebay.com/itm/Single-Pole-LED-Dimmer-Switch-DC12V-72W-for-Standard-Wall-Switch-Box-TWD-202-/131046996079
http://www.ebay.com/itm/110V-AC-LED-Dimmer-Switch-Adjustable-Brightness-Controller-For-LED-Light-Hot-/351036815702
http://www.ebay.com/itm/DC-12V-24V-8A-LED-Bulb-Light-Dimmer-Switch-Brightness-Controller-Easy-to-install-/191119234768
http://www.ebay.com/itm/12V-RF-Wireless-Remote-Switch-Controller-Dimmer-for-Mini-LED-Strip-Light-New-/221398621352
Lots to choose from, but you first have to determine if the switch is 110v or 12v. The switches may not fit your switchbox, but that RF remote looks sexy!
