4X 30W Watt Portable Mono-Crystalline Solar Panel 18V RV Car Battery Charger

Type: 30W Solar Panel Tolerance: +/-5% Battery Voltage: 18V Type of Solar Cell: Monocrystalline Open Circuit Voltage(Voc): 18V Maximum Ystem Voltage: 18V Temperate Coefficient of : (010+/- 0.01 ) %/C Temperate Coefficient of Voc: - (0.38 +/-0.01 ) %/C Temperate Coefficient of Power Voc: -0.47%/C Temperature Range: -40 Celsius to +80 Celsius Colour:black Material:Monocrystalline silicon Size:280 x 380 x 2.5mm Package Contents: 4 x 30W Solar Panel 4 x Connector Cover Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.