> In terms of heat, is it better to run 60w bulbs at full power or 100w bulbs > at less than full power with an X-10 dimmer? Efficiency of incandescent bulbs drops dramatically as the power is reduced. Therefore a 60W bulb will be cooler than a dimmed 100W bulb at the same apparent light output (and less orange too). ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics