The size of the aluminum louver waterproof pergola is 3X3m, 3X4m, 4X4m, 6x4m or customization. Electrically pergola from our factory and supplier has electric adjustable louver roof, and electrically adjustable windscreens all around. It can use remote control. The best feature is the LED lights, and except for LED strip light and side curtains, our manufacturer in China also have other accessories available like heater, weather sensor, sliding glass door, etc. More accessories for you can be customized. They're the best outdoor garden gazebos.