It did not burn well and produced a lot of black smoke, polluting the surrounding environment as well as the glass on a small lamp where I had placed it. It did not perform the same as a previous similar product, so I can't say that I did something wrong. I bought four and only one worked, unfortunately I can't use the rest. Personally, I will never purchase something like this again under any circumstances. I bought it for its affordability, but in the end it turned out to be very expensive for me.