They are expressing a relative efficiency using lumens per watt. When you raise the voltage the lumens go up faster than the watts, and thus the efficiency goes up. Bob Ammerman RAm Systems ----- Original Message ----- From: "Josh Koffman" To: "Microcontroller discussion list - Public." Sent: Wednesday, February 09, 2005 1:06 PM Subject: Re: [OT] 240-volt Power > Thanks for the link...I'm playing around in HiCalc...and on the > efficiency graph, it seems that if I supply my lamp with more than > 100% of it's rated voltage...it becomes more than 100% efficient? The > only think I can think of is that they are referencing it back to the > rated output...so with higher voltage, you get a higher than rated > output, so they say it's more efficient? That's a bit confusing...I > can't think of a better way to describe what I'm thinking though. > > Ideas? > > Josh > -- > A common mistake that people make when trying to design something > completely foolproof is to underestimate the ingenuity of complete > fools. > -Douglas Adams > > On Wed, 9 Feb 2005 17:35:32 -0000, Mike Hawkshaw > wrote: >> I've just found this software on GE's web site. It plots graphs and >> calculates life etc given lamp and socket voltage. >> http://www.gelighting.com/apo/specoem/hicalc.html > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist