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How long does OKT Lighting last?

How long does OKT Lighting last?
OKT Lighting luminaries are designed to last between 35-55,000 hours for dimming, and 20-60,000 hours for non-dimming. This greatly depends on the lamp itself and the installation. OKT Lighting adheres to the LM-80 standard of testing which is based on the life of the lamp to 80% of its origional brightness. Some other companie still rely on the antiquated L70 testing which test brightness to 70% of oirgional brightness.