How to Spec THE EDGE™ Luminaire Efficiency - allow for thermal and optical losses Initial delivered lumens – thermal losses should be less than 10% when operated at a steady state at an average ambient operating temperature of 25°C, and optical losses should be less than 15%.
Depreciation Average Delivered Lumens – Average delivered lumens over 50,000 hours should be minimum of 85% of initial delivered lumens.
Light Distribution – Specify light distribution required and IESNA luminaire classification (LCS). Luminaire to have independent photometric test reports.
Maximum system wattage (including driver loss) – Calculate delivered lumens/total wattage. This provides a timeless specification. If LED lumens/watt increase between the time of specification and the time of product ordering you will either get more light for the same energy or be able to reduce the wattage to obtain the same delivered lumens. Do not accept LED wattage only (a “90watt” LED fixture could be driven at 700 mA and have a system wattage of 250 watts!)
Color Temperature and CRI
Warranty – 5 years on the LEDs, 5 years on the driver, 10 years on the paint finish
Electrical Safety - Wet listed in the US and Canada, ENEC, CE, ROHS and EMI
Driver Specification
Electronic