Review on 🔆 Ruiandsion 6V BAU15S LED Light Bulbs: Enhanced Performance for Reverse, Turn Signal & Tail Lights - Yellow/Amber Color, Non-Polarity, 2pcs, 5050 12SMD by Joseph Morris

Bought 2 sets of these LEDs for a car with a 6V positive ground system. 1 pair worked fine and the other pair didn't. found that 1 pair was polarity sensitive and only worked with negative ground. This pair came in a slightly larger box. I don't know why the same part number can be different. So be careful. Some of them on Revain claim to be non-polar.