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I used 3 20-section strips on the ceiling of my work van for lighting to avoid the battery drain of conventional lighting. VERY BRIGHT, VERY PLEASED!!! They cost 1/3 the price of LED lighting sold for this purpose, and work MUCH better. Do yourself a favor and buy the con-122 for the power wiring.
I am in an area where the power goes out durning storms. Our first storm of Summer, 2011, we were out of power for 7 days... Interesting event if you are not prepared for it.
I put a strip of these 12v LEDs on top of the curtain rod in the Living room. The LED is fed by a standby battery. When the power is lost, A 120v ac relay drops out and the contacts close, giving light to the LEDs, which end up being sufficient for use when the power is out. These LEDs will run for a week on a good battery and if you have solar panels to charge the battery, they will always be there when you need it.
Don't be stuck in the dark
These strips are nice and bright, perfect for lighting otherwise hard to illuminate spots like shelves.
One thing I noticed that's weird: I ordered a strip of 10 segments, connected it to a 12V power supply and measured the current. I got a total of only 22mA for the entire strip. ?!?!? Used two different meters (one analog, one digital) and got the same result. Not sure how this could be, as my understanding is that each LED consumes about 20mA.
Try it yourself and let us know what measurement you get.
I installed 2 x 3-LED sections of this wired in parallel inside of a small HO scale building for lighting. The strips stick on easily and I attached an 8VDC power supply to control this lighting. I tried 12VDC and it was very bright so I reduced the voltage and still get excellent lighting as needed for my model. No problem was found in soldering my wiring to the end markings on these strips.