Utl 40Watt Solar Panel Has 36 Cell (9 X 4) High Quality Solar Photovoltaic Modules With 40Wp Output. Utl’S 40-Watt Solar Pv Module Is More Than 17% Efficient With Low-Temperature Coefficient, High Fill Factor, And Excellent Low Light Irradiance Performance. Utl’S 40Watt Solar Panel Comes With Polly-Crystalline. It Is Very Cost-Effective And Up To 16% Of Efficiency.