EL light,EL product,EL Wrist-watch,EL sheet,EL wrist Band,EL gift,EL,EL panel WHAT IS EL? ... 2000 hrs lifetime : 8000 hrs @ 50 cd/m2 60R.H.High light EL: 300cd/m2 , halflife: 2000 hrs lifetime : 8000 ... of EL:1. The goods need strong ad (including high speed , permeation and full-day) to strengthen its image ... bring with them. EL light,EL product,EL Wrist-watch,EL sheet,EL wrist Band,EL gift,EL,EL panel