testing an eco 10、12、14 the smaller the wick number the smaller the wick and larger the wick number the larger the wick but please remember there are different types of wicks such as eco LX and seedy wicks and they’re not interchangeable for example an eco 14 wick is not the same as an LX 14 wick they will burn differently it’s also important that you ensure that the wax type the fragrance the container and the color is same on all the candles that you’re testing changing any of there the wax the fragrance the container the color the fragrance load any of there factors can greatly influence burn quality so if they change you’ll have to Rican duct the burn test