Some Lumileds LEDs have an extrapolated L70 lifetime of 114 years

LED maker Lumileds (San Jose, CA), which is the company that first came up with lumen-maintenance testing for LEDs in 2008, says is the only company that has met the premium specifications of the DesignLights Consortium (DLC) in four main product families. Some of Lumileds' manufacturing and testing processes that the company says it has been improving over the years include: epitaxy, new phosphor development, die fabrication, and in-situ process control, with more than 3 billion device-hours of testing under its belt.