Photographer’s Best Friend. ACEBEAM X50 Photography Fill Light is the best tool to make sure your photos turn out perfect! The fill light provides a color rating index (CRI) of 95, meaning the colors in your photos will appear almost exactly as they would in real life, making your images more realistic. 20,000Lumens output, 1.8 hours fast charge, and can be used as a power bank. If your job or hobby requires that you make decisions based on colors in dimly lit scenarios, then it is best to incorporate a X50 high CRI flashlight into your tool box.