... box,multi light box,advertisement light box,long life,quality security,low quality consumption.it is ... placed between two flat-panel consisting of electrode.Its sandwich structure,have an upper and lower electrodes ... the fluorescent lamp6, Uniform light,soft- not its flashing light,the eye will not have tension, ... of failure8. Long life up to 8,000 hours.the life span of a half-life el (half brightness) ...