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You are in FAQ > Choosing the right LED light 

Choosing the right  LED Street light

It's important to make an educated decision when shopping for LED street lights. It's our goal to provide you with the right information to help you separate fact from fiction on competitive manufacturer claims.

Find the right product for your application. Contact us for guidance as you make fair comparisons of LED streetlights.

Compare Performance at the Application Level
Request Certified Photometric Data
Validate Lumen Depreciation
Apply the Appropriate Light Loss Factors
Evaluate Lifetime Luminaire Value

Compare Performance at the Application Level

Conduct "in field" application level performance evaluations using IESNA recommended practices and standards.
Utilise the best available design software and application engineering practices to predict application level performance. Evaluate relevant and credible case studies.


Request Certified Photometric Data

Make sure the LED luminaire manufacturer provides a certified photometric report (per IESNA LM-79) from an approved DOE lab to validate the manufacturer's photometric performance claims. 


Validate Lumen Depreciation

Obtain lumen depreciation (life) data for the LED luminaire supported by the LED chip manufacturer's IESNA LM-80 test data that is directly correlated to luminaire level performance. 


Apply the Appropriate Light Loss Factors

An accurate application comparison must account for the light levels at the end of the application life. Using the manufacturer's LED luminaire lumen depreciation data, apply the correct light loss factor to the application.

For example, a typical outdoor dusk-to-dawn application may be evaluated at a 50,000 hour (~11 – 12 year) application life. Based on this example, you would conduct an evaluation based on each manufacturer's 50,000 hour lumen depreciation values. 

Evaluate Lifetime Luminaire Value 

Analyse initial investment versus lifetime value by considering all LED fixture benefits such as lighting performance, total power consumption, maintenance and warranty. The entire luminaire must be built to last for the length of the application life.