Green Frog operates 'Euro 4'-compliant SunLong and Zhongtong hybrid buses, with the Eaton Hybrid system and Yuchai CRDi engines.
The buses are equipped with 8 CCTVs (to monitor all activity in and outside the buses for the safety of passengers), air suspension and tropical-grade air conditioners (for a more comfortable ride), a hybrid system (emits 90% less particulate matter and 28% less CO2), and an ordinary diesel bus engine.