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Diamond Omni-Directional LED Filament Passed LM80 Test

LeDiamond ( LED package manufacturer) announced that its Tesla filament has successfully completed the requirements of the rigorous 6000 hour lumen maintenance test (LM-80) by Bay Area Compliance Laboratories (BACL). It’s a big breakthrough for LeDiamond on its LED filament development.

The Tesla filament series achieves an efficiency of 180lm/W at 5700K(CRI 70) or 160lm/W at 2700K(CRI 80). Using transparent ceramics as substrates results in good thermal stability and high lumen maintenance. Tesla series are mainly used in candle lamps and bulbs.

LeDiamond Tesla filament passes BACL LM80 Test. (LeDiamond/LEDinside)

Tesla 2903 filament(2700K) had been through a 6,000 hours of 50mA experiment from BACL. The test report (see table below) shows the specifications of the data is much higher than indoor residential data by 91.8%, outdoor and commercial data by 94.1%.

Data Set:

55 ºC, 50mA

Test Interval and Test Duration:

0h,1000h,2000h,3000h,4000h,5000h,6000h

Average. Lumen Maintenance at 6000 hours:

The 96.94%

Average Chromaticity Shift at 6000 hours (Δu'v'):

0.0016

Calculated TM-21 L70 Lifetime:

73,000 hours

Reported TM-21 L70 Lifetime:

>33,000 hours

 

Data Set:

85 ºC, 50mA

Test Interval and Test Duration:

0h,1000h,2000h,3000h,4000h,5000h,6000h

Average. Lumen Maintenance at 6000 hours:

The 95.81%

Average Chromaticity Shift at 6000 hours (Δu'v'):

0.0019

Calculated TM-21 L70 Lifetime:

55,000 hours

Reported TM-21 L70 Lifetime:

>33,000 hours

 

Data Set:

105 ºC, 50mA

Test Interval and Test Duration:

0h,1000h,2000h,3000h,4000h,5000h,6000h

Average. Lumen Maintenance at 6000 hours:

The 95.23%

Average Chromaticity Shift at 6000 hours (Δu'v'):

0.0020

Calculated TM-21 L70 Lifetime:

50,000 hours

Reported TM-21 L70 Lifetime:

>33,000 hours

The LM80 report from BACL also covers LeDiamond Tesla series 1505 and 0705. The verified report by international organization may gain more confidents from lighting manufactures by using LeDiamond products .