Obvious manufacturing defect. I had 3 onions in less than a week. They were all much brighter than standard GE 20-watt bulbs and all burned out within a few days. This is because the filaments are shorted part of their length, so they get too hot and burn out quickly. A typical Chinese outlet selling useless factory defects cheaply. I send them back, even the ones that eloped. Do not buy! Could burn your armor! In the photo, the one on the left is at least twice as bright as the GE bulbs on the right. It doesn't last a week. Cheap doesn't mean better as my GE bulbs last a year or 52 times longer than these! Also 2 lightbulbs were broken upon arrival. So I'm down to 1/2 of that in a week. Wow!