I had purchased some LED for replacements for meter lights. I purchased ready to go 12v application meter light replacements and they have been burning out on me. So I took them apart and found they have been putting a 180 series resistor inline to bring it down so it will work. Well doing the math of V = IxR and that most 5mm led run around 20ma + or - .5ma or so. So using the resistor that is being used V = 20max180ohms that would give you a rated voltage of 3.6v. Well they have been advertised as meter replacement for cbs and doing the math it seems the resistor should be more like 510ohms to 680ohms to use in a 12v application and this differs depending on the color of the LED and the current draw. My question is am I correct that this person is selling me LEDs for the wrong application or is he correct. If I don't get satisfaction from him I will reveal whom had sold them to me and I am sure that will cost him some business. If I am wrong I will drop it and appologize. Thanks for any help with this.