For me is better bicycle lights witch can work without changing battery. At gearbest I found it with good price and bought four items for all my bikes. This lights seems very nice on bike, is normal light, have three mode of lightening. One light comes with defect, about it I wrote to gearbest, and gearbest side promptly solved this problem. I get new light instead of broked. Who need bicycle lights without replaceable batteries I recommend these lights. Thanks for gearbest.