W hen planning large-scale outdoor branding, architectural lighting or cultural tourism night scene projects, one of the most common decisions is choosing between a 500W large-format projector and a 700W high-power projector. Both are built for long throw distances and big image sizes, but they perform very differently in terms of brightness, coverage, environmental adaptability and operating cost.
Many project teams assume “higher wattage is always better,” but that is not always true. A 500W unit may deliver perfectly clear results for mid-sized building facades and save significant power and budget, while a 700W unit becomes necessary for ultra-long distances, high ambient light environments and super-sized display surfaces.
This article uses two real outdoor projection cases to break down the practical differences, suitable projection distances, image sizes and ambient light conditions for each power level.