I have no complaints about the panel. Replacing the flexible panel with this easy-to-clean glass that claims to put out 10 watts and all in a panel that fits in my trunk is great. However, the 12V cigarette lighter caused the charge to turn on and off, and then the control panel backlight went out completely. . I open it and see that the negative cable has come loose and is touching the positive terminal. Luckily this won't short out the battery, but I would definitely recommend getting a different SAE connector.