Shenzhen Green Ocean New Energy, an EV portable charger supplier, keeps things fresh with light, innovative gear. Their 2.8-kilogram units plug into either GB or Type 2 sockets, run on 100-240 volts, and flip between handy 3.5-kilowatt and 7-kilowatt modes. Each charger wears CE, ROHS, FCC, and ETL badges after passing tough drills like 1,000 hours in salt spray and a brutal -30 to 60 degree Celsius temperature dance. The firm also builds to order; with a 30-acre workshop, it can ship custom samples in 15 days and reach buyers through warehouses in Germany and Thailand.