Advantage of fin heat sink: Fin shape heat sink is made of aluminum alloy 1070, thermal conductivity is much higher. As to weight, it only 2/3 of the old lamps. Designed with plenty of ultra-thin fins and wind tunnels, much larger heat dissipation area and better cooling effect than traditional die casting material or lathe aluminum. Better heat dissipation make the life span longer. Input AC 100-277V for North America use.
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