CASE 3: Performance measurements of LED lights and assessment of cleaning periods

Task: Lux Mapping survey for LED lighting installation. Presentation: Magenta line 1 month, green line 23 months after installation.

Outcome: L1, L3 and L4 are showing expected lumen/lux depreciation. Light L2 is showing approx 25% lumen depreciation after only two years in service, further investigation required into the cause of this.