When sourcing LED tube light fittings, you must prioritize luminous efficacy (lm/W), aiming for at least 120-160 lm/W to ensure energy efficiency. Pay close attention to the driver type (isolated vs. non-isolated); isolated drivers are safer and more durable for industrial use. Additionally, verify the Color Rendering Index (CRI), where a CRI >80 is standard for offices, while CRI >90 is required for retail or color-critical tasks. For the housing, 6063 aluminum provides superior heat dissipation compared to plastic, significantly extending the LED lifespan (L70 >50,000 hours).