While purchasing this "work lamp" was bright and beautiful it was good, but what I bought (mini work lamp) may be by chance, but as I turned on, the center would be okay As I thought, there were strong and weak places (dark places and bright places) at the end, which looked like muscles. Is it such a thing? Or is it due to mounting position or angle? Also, do not have the light bulb properly in it, or is the lens not good? I do not know exactly why the reflector is not good, but it was disappointing because I was disappointed. Was "headlight" better? I think it would be nice to have a description of the difference between the lights of "work lamp" and "head lamp".