Lumileds of San Jose, CA, USA has released LM-80 test results for its LUXEON 3535L mid-power LED line, enabling L90 fixture life of more than a decade.
Completing 10,000 hours of LM-80 testing at 55C, 85C and 105C, Lumileds has exceeded lumen-maintenance requirements of the US Environmental Protection Agency's ENERGY STAR program, qualification by the DesignLights Consortium (DLC), as well as other emerging specifications. Projections based on TM-21-11 show that the devices will maintain 90% of their initial lumen output (L90) for a minimum of 60,000 hours at a 200mA drive current and Ts temperature of 85C. Exceptional lifetimes were extrapolated at all test conditions, says Lumileds. This performance means that LUXEON 3535L LEDs can operate in an LED fixture for 13 years (based on 12 hours of usage per day, 365 days a year) while maintaining at least 90% of their initial brightness.
Historically, customers have expressed concerns regarding the long-term performance of mid-power LEDs says Lumileds. The firm says that, by leveraging its expertise in high-power LEDs, it has developed the LUXEON 3535L line of mid-power emitters that demonstrate what is claimed to be unparalleled lumen maintenance and reliability.
Offered in a range of correlated color temperature (CCT) and color rendering index (CRI) options, the standard-format LEDs are suitable for applications such as troffers, downlights, low-bay and TLEDs. In addition, the LUXEON 3535L packages are offered at three performance and price levels — the 3535LS, 3535L, and 3535L HE — giving fixture designers flexibility.
