Hello! The advantages of hydrogen fuel cells are mainly reflected in the following aspects: firstly, the energy density of hydrogen fuel cells is much higher than that of traditional lithium batteries, which means that in the same volume and weight, hydrogen fuel cells can provide longer endurance, and the unloaded endurance of our drone can reach up to 2 hours, which is a significant improvement compared to traditional lithium battery drones. Secondly, hydrogen fuel cell hydrogen refueling process is very fast, only a few minutes can be completed, while lithium battery charging usually takes a longer time, which greatly improves the efficiency of the drone, especially suitable for long time, continuous operation scenarios. In addition, hydrogen fuel cells produce almost no pollutants during use, which is more environmentally friendly and in line with the trend of future energy development.