1.3g relates to the type and quantity of explosive contained within fireworks in relation to their transport and storage. Generally 1.3g effect fireworks contain louder and bigger bursts. There are many factors which determine the classification of a firework, including the type of packaging, the size, type and amount of its chemical components.
All of the fireworks selected by Xplosive are made by reputable manufacturers who use the highest quality chemical and powders to offer you the best effects and bursts irrespective of whether the product is 1.3g or 1.4g.
In many cases, by adding the metal pyromesh system to some of our fireworks packaging we are able to offer you the 1.3g effect fireworks in a 1.4g version that we are able to deliver!.