Sorry overlooked that part. You're right cutting a weatherproof package is not a solution. --- In dmcnews@xxxxxxxxxxxxxxx, "Tom Niemczewski" <dmctom@...> wrote: > > Welmoed, > > The LED strips are ready made and you can't really add or change the > resistors. The strips that are water resistant are covered with clear > urethane rubber to protect the circuit. So, in order to add resistors to > each group you would have to cut the strip at every group joint and add > resistors there. That is not really practical and will destroy the water > resistant coating. So, to make it easier you can just add one resistor. A > lot easier. > If you were to make the strip yourself from scratch it would make more sense > to run three LEDs off of a LM317 connected as a current limiter. It would > keep the current constant from about 10 to 40 volts. You could connect more > than one 3-LED branch in parallel to make it more efficient. > In store bought strips you have to work with what you have. > > > Greetings from Poland! > Tom Niemczewski > Vin 6149 plus 2418, 3633, 5030, 16473, 17086 > Google earth: 52°25'17.66"N, 21° 1'58.40"E > > -------------------------------------------------- > From: "Welmoed" <welmoedj@...> > Sent: Wednesday, June 13, 2012 9:52 AM > To: <dmcnews@xxxxxxxxxxxxxxx> > Subject: [DML] Re: #5939 at DCS'12 > > > I agree, Tom. > > However if the LEDs are grouped (3 or 5) why not add the appropriate > > resistor to each of the groups? > > In case of failure, it will be only one group that fails, not one after > > another? > > It's not the cost of the resistors, it's the safety and reliability that > > counts. > > > > I presume Bitsyncmaster can elaborate on the subject much better than I > > can. > > > > Welmoed. > > > > P.S.: Shouldn't the subject line need changing to reflect the LED > > discussion? > > > > > > --- In dmcnews@xxxxxxxxxxxxxxx, "Tom Niemczewski" <dmctom@> wrote: > >> > >> If your strip has 10 groups (30 LEDs) you will need a 1250 Ohm 1Watt > >> resistor. If you can't find a resistor of the exact value go with the > >> next one up. > >> Greetings from Poland! > > > >> Tom Niemczewski > > > > > > > > > > ------------------------------------ > > > > To address comments privately to the moderating team, please address: > > moderators@... > > > > For more info on the list, tech articles, cars for sale see > > www.dmcnews.com > > > > To search the archives or view files, log in at > > http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links > > > > > > > > > ------------------------------------ To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnewsYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: dmcnews-digest@xxxxxxxxxxxxxxx dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/