Acebeam X50 21000 Lumen Handheld High CRI LED Flashlight 8 x CRI95 LEDsA 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. 21,000Lumens 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