L.E.D Replacement light bulbs

Last Tuesday I ordered these LEDs. It was very hard to pass them up at the price. They came in today. I used 17 and tested the other 3. All worked fine. My guess is that they are about 90% as bright as the 921s. That is just fine because I always thought the 921s were a little too bright. The color is warm white and a little less yellow than the 921s. I prefer the color of these LEDs. I did turn on the radio and listened to FM and AM stations. No radio interference. I am very satisfied with these inexpensive LEDs so far and I have no connection with the company that sold them.