I don't know much (or anything) about car detailing. But I'd think you wanted very even light for that and you wouldn't need enormous amounts of it. I'd think it would also be useful to keep your hands free while you are examining things. I'd also look very closely at the Ultrafire UF-H2.
There is another person from Turkey here who is interested in car detailing. You might want to contact him as he will certainly know a lot more about it than I do.