If your high beam and low are in the same bulb one should be what you need bro but if you have two separate then you would need two! Sorry it was a customers car so I can’t remember exactly bro!

they might be polarity sensitive. a little late but try reversing the polarity. Mine happen to be a little off as well. The inner pins on the new leds were about .5 millimeters off to the left and right of the socket of the connector itself and kept going into the tiny slits on the inside. It really made a difference.