Led T8 retrofit fluorescent tube light lumen flux decay decrease test data report.

In the internet, there is no much led t8 retrofit lighting lumen decay test data to prove this new T8 lightings advantage.

From 2009-8-25, HCC TECHNOLOGY CO.,LTD use our part number HCC-T812-SW15-02 to test it lumen decay data after 1000hours,

2000hours.

Although Leds theroy lifespan is 100,000 hours, in our actual t8 fluorescent led test experiment.

First, we test 5pcs SMD3528 LED, after 1000hours, it don't have no any lumen decrease. (Send me email : export@hccled.com to get this

report.)

Second, we test 1pcs Led T8 retrofit fluorescent tube lighting,  the initial original Led retrofit fluorescent tube lamp power efficiency is

87.12lm/w,  after 2350 hours continuous illumine test, the Led T8 tube power efficiency(PF) become 83.38lm/w, only 4.3% lumen flux decay.
(Send me email : export@hccled.com to get this report.)

The T8 lamps Color Rendering Index (CRI) initial value is 71.3 (RA=71.3), after 2350hours, t8 fluorescent tubes CRI (Color temperature

rendering Index) is 70.6 (Ra=70.6), always keep the same value.

Assuming that if the lumen decay reachs 30%, the Led T8 tube can be considered as no actual use for home, supermarket, or warehouse.

So LED t8 retroft fluorescent tube lamp lifespan can reach 2350*(30%/4.3%)=16400 hours. But actual lumen flux decrease decay curve will be

more and more slow. Based on our experiment, after reasonable rational analysis, we guess that Led T8 retrofit fluorescent bulb lifespan can

reach 30000hours.(Send me email : export@hccled.com to get this decay curve.)

Certainly our experiment are still continuous. We will update our test data in the future.

More information, please visit our web: www.hccled.com  Contact: Jeff      E-mail:export@hccled.com