Heat and its Impact on Outdoor Lighting

One of the main issues we talk to our clients about is how heat impacts long-term LED performance. Most of the time we bring this up in the context of interior industrial lighting but for clients in the Southern and Western parts of the country, where outdoor temperatures can be sustained above 80 degrees during summer evenings, this needs to be a concern as well.

A recent Energy.gov report on the long-term performance of outdoor area lighting was just released and highlights what we have been saying for years. Under this study, area lights showed dramatic reductions in light levels and had color changes when exposed to higher temperatures.

The study also exposed the major issue the industry has with marketing LED products in this country. The gap between lab performance to field performance is dramatic. Just because a fixture says on its spec sheet that the L80 is 50,000 hours means nothing if your environment is hot and if you have harsh conditions. Too many people buy LED products from people who do not understand the technology and just show spec sheets “proving” their products will last for 20 years. If you have a hot environment or unfavorable conditions such as dust or oil in the air, you can expect most LED fixtures to last 2-3 years before reducing their light levels over 50%.

Therefore, it is imperative you talk with a lighting specialist who can analyze your needs properly and evaluate the unique conditions of your facility.

David Etzler, LC

David, LC, LEED GA, is a pioneer in the green industry. David is Lighting Certified (LC), earning the distinction from the National Council on Qualifications for the Lighting Professional (NCQLP). The LC was created as a baseline standard for knowledge covering the entire scope of the vast lighting field. As the President of US Lighting Systems, David manages the firm’s strategy and growth, including strategic partnerships with property management firms and building owners all across the country. David came to US Lighting Systems through SIB Lighting and the acquisition of his company, HOA Energy Advisors, in May 2015. HOA Energy helped commercial properties save money on their energy bills through lighting and lighting control systems. Having retrofit and managed over 75 large projects, HOA Energy had become a leader in the industry. David is active in the Green community and shares his love of the planet with his family and friends.

Questions? Please contact us!

SIB Lighting is now US Lighting Systems
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