Appears to be a Renogy Rover Elite 20 model. I'm pretty sure they are not H2O proof. I have the Adventurer 30 model inside my truck. From the way it is constructed it's nowhere near H2O proof.What type of solar controller do you have mounted in the engine compartment? I've been looking at them but can not find one that is water proof and able to with the heat specs to install in an engine bay.