Solar Panels First A 100-watt mono solar panel 12 to 18 volts for order, number in bio Price: 155 SAR Second A 120-watt mono crystalline solar panel, 12 to 18 volts Price: 170 SAR Third A 180-watt mono crystalline solar panel, 12 to 18 volts Price: 200 SAR Fourth A 200-watt mono crystalline solar panel, 12 to 18 volts Price: 230 SAR Regulators First A PMW regulator, 60 amps, large screw, 12 or 24 volts Price: 155 SAR Second A 30-amp, 12-volt regulator, considered one of the best regulators Price: 110 SAR