Goldsun Supra Plus Remote Control Water-Proof Electric Infrared Heater 3000W. High End Quality - High End Design: All the components used in our Supra Plus series are made of rustproof and robust materials for longer life. The Supra Plus range will not exhibit any sign of degradation or deterioration even in the harshest weather conditions. Supra Plus uses the latest infrared short-wave technology, its ultimate reflector delivers 28% greater heating efficiency for the same energy consumption.