... can be conveniency use or open and collect like common umbrella; it give rich and colorful color ;can flash dynamic ... use for a long time.Technology Guide Line:This Umbrella Diameter is 1.5M, It can give light ... burning sun and Rain day, The average life of umbrella is 5years ,and the EL wire ,it continue ... 200 days) .Compare with common umbrella ,The added weight of EL umbrella only is 100 g .EL wire ...