$17.99 Cargo Lamp to LED Third Light conversion

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To read the original thread and discussion on this topic go here- LINK


So I have been seeing all of these LED conversions for our trucks, which makes a lot of sense. What I don’t understand is why they are so expensive. I did a little research and came up with a few components that were too cheap not to try out. Here is what I came up with:
I first researched LEDs and came up with these from Lightobject. $12.45 all in



I then went to Radio Shack and bought terminal and bus strips. $5.54





So I took a new light I got from Brothers (nice piece) and started drilling.