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.
all four were clearly used bulbs... what are they doing cycling them through an industrial plant on a routine change schedule and selling to us poor schmucks here on amazon. Returning. I will take pictures and see if I can add them but the pins are corroded and the bulbs have dark areas at both ends indicative of a used bulb.