In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: The extra factor of 2 is because the resistor is half the value. The same current through half the resistance is half the power. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89554#m89808 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)