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.
I ordered these to use in a motorhome I am building. I have not installed them yet but I did hook temporary power to one in the dark garage and I think it will be adequate for my application. This is why I only gave a three star rating.