Product Details  led safety vest 2. 100% polyester blue mesh fabric, 16 LED lights 3. EN471 reflective tapes, 5cm width  led safety vestit meets the requirement of EN471, ANSI/ISEA 107-2004 class2 standard. 1. 100% polyester blue mesh fabric, 16 LED lamps 2. 24pcs flashing-blue LED embeded reflective tape 3. twinkle mode:   a. fast flashing, 3 times each second   b.slow flashing, 2 times each second   c. continuous irradiance  4. solety brilliance:5000mcd 5. LED visible distance :600-1000 meters 6. 3 *"AA" cell batteries can be used about 140 hours with continous flashing status 7. ON/OFF button on the surface of reflective tape on the left chest  8. EN471 retro-reflective tapes 9. elecric parts accord with ROHS certificate 10. size: S; M;L;XL; Our advantage: 1. Delivery fast. 2. Quality products. Our company has got ISO9001:2000 certificate. 3. Location advantage, we are very near Hongkong. 4.. Small quantity is welcomed.