Solar Panel Monocrystal Solar Cell Panel Controller Kit 30W 18V Output for Automobile Houseboat Item Type: Solar Panel Product Material: Monocrystalline silicon and PET lamination Weight: Approx. 715g / 25.22ozSolar Panel Type: Monocrystalline siliconSolar Panel Power: 30WProduct Size: Approx. 38X28cm / 14.96x11.02inSolar Panel  Open Circuit Voltage (VOC): 18V Solar Panel Maximum System Voltage: 18V Solar Panel LSC Temperature Coefficient: (010+/-0.01)%/C Solar Panel Volatile Organic CompoundsTemperature Coefficient:-(0.38+/-0.01)%/C Solar Panel Power VOC Temperature Coefficient :-0.47%/C Solar Panel Temperature Range: -40 ℃ to + 80 ℃ Controller Voltage: 12V / 24V automatic identification Controller Current: 50A Controller Maximum Photovoltaic Voltage: 12V battery, up to 23V; 24V battery, up to 46V (up to 50V without load) Controller Maximum PV Input Power: 660W(12V), 1320W(24V) Controller Standby Current: ＜10MA Controller USB Output: Double USB output, 5V / 2.5A(MAX) Controller Operating Temperature:- 35 ℃ to 60 ℃