Compare

Peak Power

75 Watt

20 Watt

Maximum power voltage

22.5V

18V

Maximum power current

3.33A

1.11A

Open circuit voltage

26V

20.8V

Short circuit current

3.67A

1.22A

Power allowance range

+/-5%

+/-5%

Net Weight

2kgs/4.4 lbs

1.08kg/2.4lbs

Options

solar panel only, solarpanel + vinyl decal+$59, solar panel + MPPT solar controller + $79, solar panel + vinyl decal + solar controoller + $135

20W solar panel only, 20W solarpanel + 5m extend cable (+ $20), 20W solar panel + 10A solar controller + 5m extend cable (+$40)