SEALIGHT 9006 HB4 LED Fog Light Bulbs - 5000 Lumens, 3 Colors (7100K Cool White, 3000K Yellow, 4000K Warm Yellow) - Switchback DRL Fog Lights Replacement for Cars, Trucks, SUVs - Pack of 2 - Perfect for Night Driving, Foggy Conditions & Off-Road Adventures

Switching the lamps off for just a second turns them from bright, brilliant white to yellow. Another click and they are both white and yellow and seem to change color depending on the angle that you view them. Its too cool. When a car looks like it may cross in front of you, a quick flash of the highbeams also changes the color as highbeams and fog lights cannot be on at the same time. I gave them an ease of install because I have a Lexus and that made it difficult and I actually had to read the instructions. I also can't talk about longevity but they are still both working after a few months. Original tungsten hot wire lamps were 12 years old. The output of these are 5 times brighter but since they are aimed down, do not blind people.These fog lights are easy to install and very bright. I wanted the yellow feature because the white fog light appears to cause a reflection in the fog. Fit perfectly on my 2007 Dodge Ram 3500 dually diesel. Completely satisfied with these SEALIGHT LED fog lights for my truck.Was excited having read the other reviews. I received the lights and promptly installed... No light. After double checking the switch and fuses (they were working in previous halogen bulbs) determined the bulbs did not work. I also swapped them out for my low beams, my lows and fogs are both 9006, but no joy there either. I reached out to the company and they were quick to respond. They said they would send me canbus's, which they did. When the canbus's arrived , they were just very cheap and large resistors. I connected the canbus's supplied and still no operation. Now I've wasted a week plus, my time to install and now return. There are much better options out there. I learned my lesson to stay away from cheap options, that sound too good to be true. I own an 03 T4R.This is a very nice and bright product. The install was just as easy as removing the factory bulbs. Make sure to disconnect power before installing as to keep the bulbs on the same color.The item really makes life easier in that it essentially allows you to have two different fog lights at the same time. You can switch between them at will and as conditions require. Brilliant! Figuratively and literally!!!Changes by turning on and off with the regular switch pretty bright lights good colorProduct is no good I plugged to the connector and is no haven a good contact so when I plugged allowed to lock we the connector loose power I think my is has a defective product I will like to return and seeing if I can get a new set and se if work better I really like the light but they defectiveConstantly switches between different modes. Definitely not built to work with a Canbus.