... by high efficiency and latest heat dissipation structure.2, High luminous efficiency, life-span reaches 50000 hours 3, Lower electric consumption ... the first-class aluminum, has excellent corrosion-proof, 3,High luminous efficiency, life-span more than 50000 hours4, Lower electric consumption ... of one part: 4*1.5W7,Supply Voltage : DC10-16V8, Luminous Flux : 260LM 9, Emitting angle of peak : 360° 10, ...