Cheap LED's in your backyard Answered

I was reading another post from last year and got the idea to go to walmart and check it out.  Sure enough I found LED's on sale (after christmas sale).  I figured I would have to buy strings of them, but they had the replacement LED's on sale at 37 cents for a 4 pack.   After tax it comes out to just under 10 cents each, which isnt as cheap as you can buy them from online suppliers, but its a lot less expensive than paying radio shack 80-1.25 cents apiece!   I got a bunch of white and colored (Red, Blue, Yellow, Green).   I think I bought around 60 packages of them (240 LEDS).   I'm going to go back tomorrow and see if they will give me even more of a discount if I buy them all!  They are easy to remove, just unbend the leads and pull them out!   Now I have to figure out what the voltage and amperage is, since it doesnt list it on the packs.