Hello - I am biased as I own Diode Dynamics. That said, I wanted to point out one more extremely serious flaw in the test methodology. None of the measured data is accurate or relevant for any comparison purposes. They used a fan to generate airflow, and did not allow the lamps to stabilize. This is completely contrary to any and all standard LED lighting test procedures, and it's also not clear whether there was any consistency in the level of airflow.
From the ELS whitepaper: "The standard LM-79-19 stabilization procedure was not followed and instead the product was energized for 5 minutes before photometric measurements were taken. A fan was used on all test samples throughout testing to ensure sufficient airflow to prevent thermal management systems from engaging."
I think my favorite part in all of this is "4 seconds is enough time to react". Why wouldn't I want all the time I can get to react to that critter whose just trying to cross the road? I'll take all the seconds I can get:-) My biggest challenge is low beams. I drive unlit, slower speed (45ish) roads where vast majority of the time I can only use the lows, and my lows are awwwfulll.
Hello - I am biased as I own Diode Dynamics. That said, I wanted to point out one more extremely serious flaw in the test methodology. None of the measured data is accurate or relevant for any comparison purposes. They used a fan to generate airflow, and did not allow the lamps to stabilize. This is completely contrary to any and all standard LED lighting test procedures, and it's also not clear whether there was any consistency in the level of airflow.
From the ELS whitepaper: "The standard LM-79-19 stabilization procedure was not followed and instead the product was energized for 5 minutes before photometric measurements were taken. A fan was used on all test samples throughout testing to ensure sufficient airflow to prevent thermal management systems from engaging."
I think my favorite part in all of this is "4 seconds is enough time to react". Why wouldn't I want all the time I can get to react to that critter whose just trying to cross the road? I'll take all the seconds I can get:-) My biggest challenge is low beams. I drive unlit, slower speed (45ish) roads where vast majority of the time I can only use the lows, and my lows are awwwfulll.