... power,no heat/radiation,long life,thin 3.fast send,good price/quality 4.CE,RoHS Colorful el fashional t-shirtEager ... 1.Working t-shirt: sewing or with velcro2.Twinkling effect:3~8 flashing3.Life time: very long4.Thickness:super thin, ... -shirt will make you the center of the people.4.Various colors and images for you.5.Specialized technicians ... CE, RoHS, 0.15-0.5 mm thick, 80-150 cd/m2, 5000-8000 hours)