Hi James, Take the MOSFET out of the circuit, connect the halogen lamp up to your power source with an ammeter in series and measure the current the halogen lamp is drawing and let us know what value you get. This information will be helpful. Best regards, Ken Pergola -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads