... years warranty for the products Longevity dome light,led dome light,xenon light. Rated Voltage220Vlight source:(on-polar fluorescent lamp ... , petroleum and chemical industry, electric power, metallurgy, railway, iron and steel, shipping, army, aviation, police and fire-fighting ... and hot start .the factor of light source power>0.95 , high light efficiency, environmental,Energy-saving, no strobospic ...