system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why do the ion cannons on the Malevolence and the one used during the Battle of Hoth look so different?
gpt
One was built for use through an atmosphe and had to withstand frigid temperatures and snow, the other in the vacuum of space. 

Additionally, the ground-based one had a steady power source while the ship-based one had to be charged.   

Same tech, completely different environments.