Product: DOKIO 220W 18V Foldable Solar Panel Kit Lightweight(11lb,28x20 inch) Monocrystalline(HIGH Efficiency) with Controller 2 USB Output to Charge 12V Batteries/Power Station (AGM LiFePo4) RV Camping Boat
Brand: DOKIO
Color: Black/Red
The panel's energy production depends on how much sun it gets. Remember to connect your battery source first, then the panels. 
   This product is primarily designed to charge batteries. Using without batteries is primarily providing power to the USB ports. If you want higher power generation efficiency, you can buy MPPT and use it 
 If your solar generator has a controller built into it, you may be able to just connect this solar panel (without its included controller) directly to your solar generator, Without the voltage regulation provided by the controller your chance of cooking the battery by overcharging is possible.  
  NOT day-in day-out exposure. Sun damage to fabric case is most likely 
      Question: Are this units waterproof? Answer: Yes,It is waterproof ,BUT meant for temporary or emergency use only. Not designed for permanent installation or prolong weather exposure.DON'T leave them out at night or in bad weather. 
 Question:Does this kit come with some sort of stand? Answer:There is no stand. I lean in against my RV or RV tires. I have been very happy with this panel set though 
  Question:On solar panels before I purchase i want to know, if you put on the roof of the house, how long will last before go bad? Answer:You don’t want flexible panels for that purpose. Get the hard panels. They last longer.  
  
【PORTABLE AND LIGHTWEIGHT EASY TO CARRY】-- This solar panel photovoltaic packs 220W of power yet is only 0.9inch (2.4cm) thick and weighs only 9lb (4.1kg), making it easier to mount,transport, hang, and remove.
【“PLUG AND PLAY"SETUP】--you really don't NEED anything else to charge your battery, Solar charger for all 12V batteries ,with its 18V optimum power voltage.Protection against: overcharging, overload, short-circuit
【PERFECT CHOICE FOR OUTDOOR AND EMERGENCY LIFE】-- 9.85ft (3m) cable length from panel to controller, For most power stations (Jackery,Goal Zero,Ecoflow,Paxcess) and 12-volt batteries(AGM,LiFePo4,Deep cycle batteries),RV,car,boat,trailer,truck,pumpa,camping,van,emergency power
【PUT A LOT OF POWER INTO YOUR BATTERY BANK】-- powerful high conversion efficiency with high efficiency monocrystalline solar cell, you will get greater power efficiency even though the panel is smaller than a traditional model.Maximizes system output by reducing mismatch loss
【WELL PACKAGED, QUICK DELIVERY】-- Amazon US warehouse shipping, Receive goods in time，any questions you can contact us at any time, we will do our best to provide you with a satisfactory solution to ensure that you will not suffer any loss.

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