Main criteria for judgment:
1. Significant decrease in brightness: When the luminous flux maintenance rate is below 70% (L70), the lighting effect is insufficient.
2. Abnormal lighting: Flickering, color change (such as yellowing), complete lack of light, or uneven brightness.
3. Driver power supply failure: Abnormal noise, overheating, unstable output voltage, or complete failure.
4. Structural and component damage: Deformed pole, cracked base, stuck lifting system, aging seals leading to a decrease in IP rating.
5. Protection rating failure: Internal water ingress, severe dust accumulation, or circuit corrosion.
Simple self-test methods:
1. Observation method: Compare with a new lighthouse to see if the brightness and color are significantly worse.
2. Functional test: Check if the lifting, rotating, and remote control functions are normal.
3. Tactile check: Touch the light body and heat sink to see if they are overheating, and check if the cables are aging. 4. Professional Testing: Commission an organization to measure luminous flux maintenance, driver power supply efficiency, etc.
Maintenance and Decision-Making Recommendations
1. Regular Maintenance: Clean the lampshade and heat sink quarterly and inspect components; have a professional inspect it annually.
2. Replacement Decision: If core components (such as the light source and power supply) fail or reach the end of their lifespan, and repair costs are high, it is recommended to replace the lighthouse with a new one.
