Aug 20, 2022 · In my daily communication with different customers, more and more customers shared with me some European brand manufacturers offer L90B10 100,000 hours lifetime option on LED street lights and high power LED flood lights. Maybe you have a question about why people need L90B10 100000 hours lifetime?

Jul 10, 2018 · L90 of 50,000 hours means that the tested LEDs produce 90% of the initial light output at 50,000 hours. That leads to some new terms like “L70” and “B50.” L70 refers to lumen depreciation to 70%...

1 day ago · Like L90B10 at 50,000 hours means the LED lamp keeping 90% lumen from initial lumen and only 10% light failed to reach 90% lumen. You can get clearly L70B50 means only 50% lamp survive at 70% lumen remaining at 50,000 hours. So L70B50 light decay is faster than L90B10. From the data, L100B0 is the best quality, but it's impossible to get that.

Luminous flux maintenance predicts which percentage of the LEDs have a certain decrease in luminous flux after a certain time. Often a specification such as L90 B10 at 50,000h is wrongly interpreted to mean that 10% of the LEDs have failed after the specified operating hours.

比如50000h (L90/B10)，即为10%的产品光通量输出降至初始值90%以下时所用的时间是50000小时。 反过来说，是指LED产品具有在工作5万小时后，仍有90%的产品光衰小于10%的可靠性。

Apr 10, 2019 · From our TM-21 test report, we can also see the lumen maintenance of LED source is 91.59% at 50000hours at 25℃. So we can say our LED high bay light is L90 at 50000hours at 25℃. But when the working temperature is up to …

L90 50,000 hours means within these 50,000 hours no more than 50% of the products achieve less than 90% of their original luminous flux. The L/B value was originally intended to specify the drop in luminous flux of lamps of various types e.g. HID, fluorescent and halogen lamps.

Oct 24, 2023 · Extended Lifespan: LED street lights with L90B10 ratings exceeding 100,000 hours provide cities with long-lasting illumination solutions. This reduces the frequency of light replacement, resulting in significant cost savings and reduced maintenance efforts.

Integrated LED luminaires effectively manage heat through integrating heatsinks into the luminaire design. This increases their capacity for heat management significantly. As a result, integrated LED luminaires typically have a much higher hour rating of 50,000hrs to 100,000hrs.

Rated service life 100000h (L95/B50) at AT = 25°C, 100000h (L90/B50) at AT = ta max. Get to know the extensive range of indoor and outdoor luminaires in the SITECO portfolio. Choose from one of our two catalogs now.