Nowadays, It is the most popular project that replace the LED headlight bulbs for car modification. In fact, such differences appear because the brand of lampwick and The material of headlight.the mainstream lampwickis such as CREE(United States),OSRAM(Germany)and NICHIA(Japan). Mostly, the lampwickis which belong to small brand has short service life and easy to blew out.Otherwise,the light body with a plastic material is cheaper than the light with a metal material,and the heat transpiration is much worse also.