A prof where I work that's an electronics whiz told me not to worry .. he said that any 12 volt LED lighting I'de be buying off of ebay is likely designed to work in car applications .. cars have alternators and when running you get charging voltage so while they may be rated at 12V they're likely fine at 13.5V. And if they aren't, they may not last as long, but .. how much less time are we talking about and why worry when they cost $15 for 5 meters worth?
Honest question, I'm one of those KISS principle people. Introducing caps into a simple circuit like this on a boat .. I don't know, cheap China electronics, I guess one can say the same for the LED strips themselves but yeah, more complication and electronic components more opportunities for failure .. and worse maybe? I don't know enough about these things so I welcome correction :) Steve Suhana, C&C 32 Toronto On Fri, Jun 28, 2013 at 8:25 AM, Steve Thomas <sthom...@sympatico.ca> wrote: > > Rich, > On a second look I realized that the devices I ordered will not work > for you since the output voltage cannot be adjusted > lower than the input. > > This unit might suit your application. It is a purpose built constant > current LED driver from the same guy, and even less > expensive. > > > http://www.ebay.ca/itm/DC-Converter-Constant-Current-Voltage-1-3-30V-LED-Driver-Battery-Charger-LM2596-/390616867671?pt=LH_Defaul > tDomain_0&hash=item5af2946357 > > Steve Thomas > C&C27 MKIII > Port Stanley, ON > > -----Original Message----- > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of Steve > Thomas > Sent: Friday, June 28, 2013 8:12 AM > To: cnc-list@cnc-list.com > Subject: Re: Stus-List LED cabin lights > > > > Rich, > I ordered 4 similar devices from this guy a couple of days ago. The > price is a bit better directly from China. My intention > is to be able to run 24 volt equipment. > > > http://www.ebay.ca/itm/281041084321?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 > > Steve Thomas > C&C27 MKIII > Port Stanley, ON > > > -----Original Message----- > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com]On Behalf Of > Knowles Rich > Sent: Friday, June 28, 2013 7:31 AM > To: cnc-list@cnc-list.com > Subject: Re: Stus-List LED cabin lights > > > For those who may recall my little LED cabin lighting project (Fred for > one), I noticed that there is some light level flutter > when my Espar heater or refrigeration is running, an effect that is not > noticed on incandescent lights. I am also concerned about > the long term negative effect of high voltage levels during battery > charging. The only practical solution is to install a voltage > regulator in the lighting circuits. > > After a day of unsuccessful local research, I stumbled on the URL below > and have ordered a couple to try out. The source dx.com is > an interesting one you may wish to explore a bit. > > > http://dx.com/p/car-150w-dc-8-32v-to-9-46v-voltage-boost-converter-regulator-for-laptop-blue-206971?utm_rid=95527470%2C95527470&ut > m_source=shopping&utm_medium=pcs&utm_campaign=paidshopping > > Rich Knowles > INDIGO LF38 > Halifax, NS. > > > > > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com >
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