Shenzhen Green Ocean New Energy has built a solid reputation as a portable EV charger supplier. Its units weigh 2.8 kg, come with dual GB/Type 2 adapters, and switch between handy 3.5-kW and speedy 7-kW modes on the wide 100-240 V input. Each charger passes demanding tests, including salt spray for corrosion and temperature cycling from 30 degrees to 60 degrees Celsius, before receiving CE, R0HS, FCC, and ETL marks. The company also provides OEM/ODM services supported by a 30-acre factory that can turn around samples in 15 days. Products ship worldwide from overseas warehouses in Germany and Thailand, so buyers can get stock quickly no matter where they are.