... 1.factory,3years exporting experience 2.lifespan:100000 hours power factor > 0.99 3.5years guarantee die casting aluminum street light ... year guaranteed, no maintenance required, lifespan:100000 hours2. power factor > 0.99, 60%-90% energy saving 3. CRI > 80Ra,soft light good ... >80lm/w5. FCC, CE, ROHS certificated; 6 Voltage: 90V-270V,one lamp can work under 110V also 220V 7. Frequency: 230KHz ...