When evaluating a light beauty case, prioritize LED lighting quality, specifically looking for CRI (Color Rendering Index) ≥ 90 to ensure accurate makeup application. The case should feature stepless dimming and adjustable color temperatures (typically 3000K to 6500K). For the structure, ensure the outer shell is made of impact-resistant ABS or Aluminum alloy, and the interior includes adjustable EVA dividers for customizable storage. If the unit is portable, verify the lithium battery capacity (minimum 2000mAh) and USB-C charging compatibility.