Have the daytime running lights can be installed by a workshop because in the circle none really knows me with the technique of cars and the instructions (plan) was somewhat confusing. On the back of the instructions, the plan was described in English and recorded. However, the English plan with the German non-identical, which has even confused the master of a workshop. However, the installation was then quite simply, the master who watched step by step. He has taken 1.5 hours. Someone who is not familiar with the technology of the cars, it should rather be installed professionally and go to a workshop, which I can only guess !! All in all super daytime running lights, are working properly and the chamfered shape I find very athletic. I just hope that I will have in mind long joy. Time will tell ... let Since I had to go to a workshop to install the daytime running lights were from the cheap 40 euros several more Teuros;) But it was worth it - looks great!