Seller should provide an insert with instructions, as the instructions on the back of the box are in such a tiny font that they are practically unreadable, even with a magnifying glass. In addition, instructions are unclear with conflicting information. How do you know when it is done charging? Just guess, because they don't tell you.
I bought it to light cone incense without the sulfur smell of matches. It's a little tricky, but once you figure it out, it WILL light cone incense. It should be great for candles and cigarettes. If the instructions had been clearer, I would have given a higher rating.