The main difference between large and standard candles is their size and the amount of pyrotechnic composition they contain. Large candles typically have a larger diameter and a longer burn time, which allows them to produce a more impressive display of lights and colors. They also tend to have a greater number of shots or bursts, which means they can create more intricate and complex patterns in the sky. Standard candles, on the other hand, are smaller in size and typically have a shorter burn time and fewer shots. They are often used as part of a larger fireworks display, as they can be more easily combined with other types of fireworks to create a diverse range of effects.