200W 12V Solar Panel Kit With Regulator 200 watt Mono Caravan Camping ChargerMaximum power (pmax): 200W Note: There is a voltage regulator circuit board on the back of the solar panel to protect and charge your electronic devices. If your device is a mobile phone with 5V1A and 5W charging needs, the solar panel will send out 5W of electricity to charge you, and it will not directly charge the mobile phone with too much power. Direct use of solar panels is direct current. If AC power is required, inverter shall be added. Solar