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Mother's Day RE Project :)


By snowcrow, Section Diaries
Posted on Mon May 12th, 2008 at 12:36:29 PM MST
Let there be light !!!

 I decided for Mother's Day to give a gift that keeps on giving.  I figured the kitchen, being one of the most used rooms in the house, was the best place to start with a RE upgrade.

 Usually the light over the stove is left on all evening and really doesn't shed much light on the counter crossed the kitchen, so I thought under cabinet lighting would be nice.

 I looked around and decided to go with some short 5" 6 LED bar modules @ 12 vdc shown below.



 If a LED just happens to go bad, it's easy enough to pop out a module and fix it, or replace it, not so with the long flexible strip type.

 To make things even more interesting, I decided to use an old motion detector off one of those solar powered security lights. Both the solar panel and battery were toast, but the detector electronics worked fine.

 The security light was setup to run 6 vdc, but I found the motion detector electronics to handle 12 vdc with no ill effects. (It don't release it's smoke!!)  The LED modules can run at between ~8 to 14.8 vdc @ 27 ma so with the battery in the basement, with line less, it should not exceed the working voltage of detector or LED's.

 I put up a 5w VW solar panel for now, and know I'll need at leased a 20w panel for it to work well in the winter months. The lighting when on only draws 3.4w.

 The wiring is all in, but the LED modules have not arrived yet!?  Hope to get some pictures posted soon!!

Blessings, Snow Crow

Mother's Day RE Project :) | 7 comments (7 topical, 0 editorial)

Re: Mother's Day RE Project :) (3.00 / 0) (#1)
by ghurd on Mon May 12th, 2008 at 07:17:03 AM MST
(User Info)

The module.  27ma or 270ma?

The PV. 42 cell or thin film?  Lighter plug or OBD?
G-



Re: Mother's Day RE Project :) (3.00 / 0) (#2)
by snowcrow on Mon May 12th, 2008 at 07:56:01 AM MST
(User Info)

 The LED module is 27ma each, total draw 220ma for 8 modules, if as claimed!?  The VW solar panel is the older cell type with the lighter plug, why?

Blessings, Snow Crow

[ Parent ]



Re: Mother's Day RE Project :) (3.00 / 0) (#3)
by ghurd on Mon May 12th, 2008 at 11:51:29 AM MST
(User Info)

The "27" keeps showing up. (3.4W / 12.6V = 270ma)
Just another thing to keep me in my state of confusion.

The old VW PVs make more than that 175ma on the sticker.  Some nearly 300ma.
I wondered, if yours was a new one, what ma it made.

I think you will be impressed with how it works when it is done.
G-


[ Parent ]



Re: Mother's Day RE Project :) (3.00 / 0) (#6)
by snowcrow on Tue May 13th, 2008 at 04:59:37 AM MST
(User Info)

  Sorry ghurd, I had planned on 10 modules, but only used 8 and thats where the 3.4w came from :>

(12.6v x 27ma)= 0.34w/module x 8 modules = 2.72w total
(27ma x 8 modules)= 216ma + 4ma(for motion detector)= 220ma total

  The VW panel is one of the old ones, 18.8vdc @ 170ma. It will have to do for now!

  I received the LED modules and installed them yesterday.  I found that the wiring to the detector circuit board needs a little touch-up with solider, other than that, everything is looking good so far :)

Blessings, Snow Crow

[ Parent ]



Re: Mother's Day RE Project :) (3.00 / 0) (#4)
by Norm (peppysue@suite224.net) on Mon May 12th, 2008 at 01:27:23 PM MST
(User Info)

Would be nice if there was someway easy to compare
 the amount of lumens that some of these
leds produce.....for instance I have a 20 led
tentlight that I got from Kmart that puts out a
pretty good light for about an hour with 5.6 VDC
(4AA...700Ma/hr...)seems like it used about 350Ma
at that voltage.
So I'm curious if yours are brighter....wondering
if yours were to be hooked up to say 8  700Ma.AAs
and starting out at 11.2 How long it would take to
drop to 10 volts?
Just one of my quests to find a pretty bright
led light that will last about 4 hrs at night
and enough batteries to do the job and
 yet be able to be charged with a VW panel under
 the best conditions....(kinda a show off thing).

( :>) Norm


Re: Mother's Day RE Project :) (3.00 / 0) (#5)
by DamonHD (d@hd.org) on Mon May 12th, 2008 at 02:56:49 PM MST
(User Info) http://www.earth.org.uk/

Well, some on-line shops (and even some of the packaging) lists lumens out for Watts in, which is key.

Otherwise you get all sorts of handwaving/garbage Watts-of-Halogen-on-murky-day-in-darkest-Peru-Watts-equivalent...

Show me the LUMENS!  (And power draw...  And price.  And light colour...  And blackjack...  And ho^W um...)

Rgds

Damon

[ Parent ]



Re: Mother's Day RE Project :) (3.00 / 0) (#7)
by snowcrow on Tue May 13th, 2008 at 05:09:15 AM MST
(User Info)

 Sorry Damon, The LB3-CW6 module above cost $4.95 USD and the specifications are at the link below :>

https://www.superbrightleds.com/specs/LB3.htm

Blessings, Snow Crow

[ Parent ]



Mother's Day RE Project :) | 7 comments (7 topical, 0 editorial)
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