To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Not sure where they get 12000 hours. Mine have not lasted that long. I have gone through 3 sets of these in 5 years. Still, they work and they are not bad. next time I think I am trying a different brand and going for a more daylight color. These are on the green side.