Battery operated light is the way to go if you want to use a light box. I would think a candle would make the glass hot, not to mention that if you put the dish directly over the candle, without an air source, the candle will burn out. Personally, I don't use a light box unless the pattern used has very light lines. Most all the patterns in magazines, or store bought, have very dark lines. All you have to do is put the fabric over the lines and trace a fine line on the fabric for placement or as part of the applique itself. If the fabric is dark and cannot be seen thru, then I make a copy of the shape, cut it out and put in on the fabric and cut the fabric shape, with or without an allowance for turning. Good luck and enjoy your journey!