1) The sliding distance between the low beam focus and the high beam focus is 6.85mm, which mostly approaches to the halogen light
2) The sliding part can be electrified within 0.2 seconds and it will not become so hot that it stops working
3) The sliding stability is very excellent which can support 100,000 times of sliding
4) Competitive price due to monthly H4 (H/L) output of 10,000 sets
5) Better manufacturing procedures compared with the same type of products