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.
They last a few hours at full strength, brightness is surprisingly good. Then slowly dim down from that point If you’re looking to light up a small room it will do so for a couple hours. After about five hours it will light up around a 4-5 ft. Area