Replaced the headlights with some Auxito led bulbs on my 2004 Ford Ranger XLT. Without modification to the headlamps or the securing rings, there is only one way for these to be installed into the headlamp to allow the locking rings to hold the headlight in place. Also, the connector "clicked" into place with a secure fit. The cooling fan is so quiet, I had to put my ear on the headlamp to hear it running. I had to make no adjustment to the headlamps. The beam pattern is the same as a standard halogen bulb, but much brighter. I took them for a test drive at night & they provide bright "down the road" lighting, both in low & high beams. I have tried several other LED headlights (with & without controllers) which induced noise in the radio during operation. These were an exact fit replacement for my standard halogen bulbs with no induced radio noise.