> to those on 120 V mains and several people have found > a cheap, quick means of extending the lives of these > bulbs - at the slight expense of lower lumen output > via the use of a simple series resistor ... When I first started this experiment I used my room's two-bulb fixture, as this was where bulbs blew most often and thus was the biggest PITA. With a 47R resistor on just one bulb, I could not tell the difference in brightness between the two. Using 2 x 47R is noticeable and too yellow to work under, but suitable I think for places like a passage which just needs any illumination and where the bulb may be on for long periods -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads