LED Tri-proof Light square type FIST-S series, one of the latest models in our Tri-proof luminaries series of Runwin, with new design of double color extrusion housing, aluminum plate and aluminum board inside. To ensure the good heating dissipation, it has big space of housing what can guarantee the big power 70W or even higher wattage with high light efficiency of 135lm/w. On the other hand, due to the big space housing, you could DIY the function of Microwave sensor and emergency if need, which could make the LED Tri-proof Light square FIST-S to be smart and more energy saving.