Hightec’s panel is a little cheaper, and more efficient. Newpowas had to make their panel 6 inches longer and 4 pounds heavier for the same 200W output. Newpowa also has a 175w panel but Hightec Solar’s 175w beats them too. Renogy 100W Rigid Solar Panel – We’d choose the Newpowa 100W panels, which are cheaper with similar specs and