... 3.Lifespan: 50,000 hours 4.Aluminum alloy frame 31W High Power LED Industry Lamp with Nichia LEDs, 2,508lm Key Specifications/Special ... Features: Power: 31WCCT: 5,300KLuminous flux: 2,508lmPower factor: >0.98Total harmonic ... %Lifespan: 50,000 hour Mission: Make customer life easier. 31W High Power LED Industry Lamp with Nichia LEDs, 2,508lm