Hi Russ
You have the essential difference correct, the larger LED allows more light / area, but at a cost of more power. The larger LEDs are a good choice if you are making something like an LED flashlight where you want to pack the most light into a tight area. The 3528 size is probably the most common size though, which translates into lower cost per lumen to make them.

For a yacht, you need to consider how much light you need and how it will show - a strip of densely packed 3528 LEDs will give a more even light than a strip of sparsely packed 5050s. In the case where I have replaced a florescent light with a strip of 3528s, the lights are behind a diffuser and the 3528s are close enough together that it gives a pretty even light, whereas the 5050s would have been visible as a bunch of discreet sources. So an esthetic consideration.

The other thing is that the 5050s will generate more heat than the 3528s, and since there is likely no provision made for heatsinking I would expect the 5050s to start burning out before the 3528s. But not a significant issue.

I build electronics for a living, and we build LED panels at work for commercial signage, and use 3528s on a grid of about 1" spacing. Customer is very happy with them. 5050s would make the illumination blotchy, we would not want that.

Graham Collins
Secret Plans
C&C 35-III #11

On 2013-04-12 12:56 PM, Russ & Melody wrote:

What are the practical differences between the two? (more LEDs but smaller vs larger LEDs & slightly higher consumption)

Can you say if one is clearly better for use on yachts?

Cheers,  Russ
/Sweet /35 mk-1

At 10:15 AM 11/04/2013, you wrote:
This site lists the specs for the 5050 and 3258 type:
http://www.ledlightsworld.com/page.html?id=32 <http://www.ledlightsworld.com/page.html?id=32>

Steve
C&C 32
Toronto


On Thu, Apr 11, 2013 at 11:35 AM, Josh Muckley <muckl...@gmail.com <mailto:muckl...@gmail.com>> wrote:

    Sorry try this link instead

    
https://drive.google.com/folderview?id=0B8pEh5lnvP1yaldRek85bXUzenc&usp=sharing



    On Thu, Apr 11, 2013 at 11:25 AM, Josh Muckley
    <muckl...@gmail.com <mailto:muckl...@gmail.com>> wrote:


        No not too bad.  Especially considering its 5 meters of LED's.

        The vinyl coating is a little odd.  It is tacky. Almost like
        it is still gooey.  Kinda reminds me of the transparent gummy
        key rings that businesses sometimes give out as advertising.

        They have a peal and stick backing which is nice but I have
        little hope will last.  A staple gun while probably be the
        best backup to the adhesive.

        The real that they come on is surprisingly small.  Its hard
        to believe that there is actually 5 meters there.

        https://docs.google.com/folder/d/0B8pEh5lnvP1yaldRek85bXUzenc/edit


        Josh Muckley
        S/V Sea Hawk
        1989 C&C 37+
        Solomons, MD

-- When security matters.
        http://www.secure-my-email.com <http://www.secure-my-email.com>
        On Apr 11, 2013 10:54 AM, "Tim Sippel"
        <tim.sip...@rci.rogers.com
        <mailto:tim.sip...@rci.rogers.com>> wrote:


            That's not terrible, thanks for the info !



            Tim

            From: CnC-List [mailto:cnc-list-boun...@cnc-list.com
            <mailto:cnc-list-boun...@cnc-list.com>] On Behalf Of Josh
            Muckley
            Sent: Thursday, April 11, 2013 10:48 AM
            To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>
            Subject: Re: Stus-List Strip LEDs Cabin Lighting



            Just checked the amps for the whole roll.  Came out to
            1.5amps

-- When security matters.
            http://www.secure-my-email.com
            <http://www.secure-my-email.com>

            On Apr 11, 2013 10:14 AM, "Tim Sippel"
            <tim.sip...@rci.rogers.com
            <mailto:tim.sip...@rci.rogers.com>> wrote:

            Does anybody know how many amps these strips draw , it
            has to be miniscule right ?



            Tim Sippel
            33mkii Matco
            Toronto
            <http://www.timeanddate.com/worldclock/city.html?n=250>

            From: CnC-List [mailto:cnc-list-boun...@cnc-list.com
            <mailto:cnc-list-boun...@cnc-list.com>] On Behalf Of
            Stevan Plavsa
            Sent: Thursday, April 11, 2013 9:59 AM
            To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>
            Subject: Re: Stus-List Strip LEDs Cabin Lighting



            The chinese made ebay 5m strips are cuttable at 3"
            intervals. I'm waiting for mine too.



            Steve

            C&C 32

            Toronto



            On Thu, Apr 11, 2013 at 9:54 AM, Joel Aronson
            <joel.aron...@gmail.com <mailto:joel.aron...@gmail.com> >
            wrote:

            Edd,



            I'll let you know in a couple weeks.  I am hoping they
            can be cut and spliced like Josh's.



            Joel

            35/3

            Annapolis



            On Thu, Apr 11, 2013 at 9:41 AM, Edd Schillay
            <e...@schillay.com <mailto:e...@schillay.com>> wrote:


                Joel,



                Can these be cut down? And if so, how do you wire
                them up? Do you need special connections?



                The price is great and I do want to replace my
                fluorescent bulbs.



                All the best,



                Edd





                Edd M. Schillay

                Starship Enterprise

                C&C 37+ | Sail No: NCC-1701-B

                City Island, NY

                Starship Enterprise's Captain's Log Website
                <http://enterpriseb.blogspot.com/>



                On Apr 11, 2013, at 4:02 AM, Joel Aronson
                <joel.aron...@gmail.com
                <mailto:joel.aron...@gmail.com> > wrote:



                I bought white and red strips off EBay.
                
http://rover.ebay.com/rover/0/e11401.m1842.l3160/7?euid=049cfa25528a48dab196fe09c311ec7e&loc=http%3A%2F%2Fcgi.ebay.com%2Fws%2FeBayISAPI.dll%3FViewItem%26item%3D190810137664%26ssPageName%3DADME%3AL%3AOU%3AUS%3A3160&exe=10013&ext=100026&sojTags=exe=exe,ext=ext




                $14 each. Worth the gamble.
                Joel

                35/3

                Annapolis.




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