For the last 2 weeks, my car bulb starts blinking and after some time bulb stopped working completely. My mechanic suggests replacing the Philips d4s bulb asap. I google and find this product
https://www.xenonplanet.com/philips-...-hid-bulb.html. I need suggestions about this product. Should I buy it ? Any other recommendations?

 

Just throwing my two cents i have pruchased the original philips d4s they will work for a year and half and so will the cheap d4s so if you are ok with buying expensive d4s its totally up to you and ya better to change both otherwise you will see one side darker and the other brighter lol
one more thing its better to switch the bulb and make sure its the bulb thats causing the problem sometimes failing hid unit does the same thing .