When evaluating LED wall fixtures, prioritize Luminous Efficacy (lm/W) to ensure energy efficiency; high-quality fixtures should offer at least 100-120 lm/W. Pay close attention to the Color Rendering Index (CRI), where a CRI > 80 is standard for general lighting, but CRI > 90 is essential for retail or gallery spaces to ensure color accuracy. Additionally, verify the Ingress Protection (IP) Rating—use IP20 for indoor dry areas, but require IP65 or higher for outdoor or bathroom installations to prevent water and dust entry. Lastly, confirm the Driver Brand (e.g., MeanWell or Philips), as the driver is the component most likely to fail; a high-quality driver ensures a lifespan of 50,000+ hours.