I bought a couple of 36 LED lights on ebay about 6 months ago to try them out. IIRC, they were $3.68 each including shipping from China! Just burned out an incand. bulb and thought it was time to install the new LED ones. Lo and behold, one was defective.....
I would not hesitate to buy more at $3.68 delivered to our door. I could pay around 10 times this price in RV stores for what I assume would be pretty much the same thing.
I have to say that I am not highly impressed with the light quality of these lights, but they are what they are. A bit too glary and harsh for me and although the ones I bought are called "warm white" they are too far off incand. for my tastes. But as an elec. eng., I am way more critical on this sort of thing than most.
We don't expect to do much dry camping but you cannot argue with the longetivity and greatly reduced heat output of LED lights.