TRANSFORMER FOR 110/220 VOLTS WITH 5V USB INSTRUCTIONS Maximum Power Ratings: Model RT100W Max Power watts Model RT200W Max Power watts Model RT300W Max Power watts Model RT500W Max power watts Model RT750W Max. power statistics Model RT1000W Max.power 1000watis Model RT1500W Max.power gigawatts Model RT2000W Max.power gigawatts Model RT3000W Max.power gigawatts Model RT4000W Max.power gigawatts Model RT5000W Max power gigawatts Model Max.