It looks very good, if you need a high lumen output lighting fixture hanging at a low ceiling such as 4 to 5 meters. It's a piece of thin layer in front of the temper glass or PC cover. It change the beam angle from 120 degree to 90 degree.  You can have a try.

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HiClean Plus is a breakthrough design in industrial lighting, smooth housing combined with aesthetic taste and dust-proof features. At the basis of highly efficient heat dissipation solution, our design concept is “UNIBODY”, which leads the way in highbay lights.