Entire streamline appearance design clear and smooth. Available up to 273W. System efficacy 159lm/W. 15KV surge protection, with replaceable SPD. IP66, IK08. CB, ENEC, RoHS, SASO available. Flexible lighting configuration options including 350mA, 500mA & 700mA. Replaceable LED module design (>=120W), no heat conductive silicone grease. High grade aluminum housing ensures reliable operation. High-Power ceramic LEDs help to achieve long LED Lifetime with excellent heat resistant. Long 100,000hr lifetime reduces maintenance costs. Professional lighting distributions options. Smart city simplified integration options.