1.high efficiency, high power 2.good heat dissipation 3.high quality, lower price 4.Angle adustable, easy replacement. Highest ... top brand in USA;2. MeanWell Power Supply, more stable;3. AC85-265V Input Voltage range, 50-60Hz Frequency range;4 ... maintenance after the installing;13. Best partner of the solar panel, popular applied to solar energy;14. Various applications: street, highway, square, park ...