Finally, a real player in the portable power field! Solid build, long life ETFE coating instead of the couple year life of PET panels, and, a novel output port with several options. Plus, the assortment of plug adapters and cables is way above the competition. ITEHIL isn't hard-wiring a proprietary connector on their panel, they are giving you the freedom to make their panel work with many other products...a real team player!
I tested the 100w panel in fairly clear conditions, and not perfectly angled at the sun, and got 77 watts. That is above average.
Very happy with this product!