EV Chargers are categorized into 3 levels; Level I, II, and III – each category has a different power output and charging speed.
Level 2 EV Charger is a 240V charger and is recommended because it's cost-efficient and fast, unlike Level1. Thet give a maximum distance of about 50 miles for every 1-hour charge. Level3 EV Chargers are not regulated for residential use because of their high energy demand; they are used by charging stations for commercial purposes.