... Guaranteed for a year 3.Cheaper, more fashion, higher quality Led track lamp 1, high power LED tunnel light less energy consumption ... > 50000h, and dosen't be influenced by frequency switch; 3, alight source, heat dissipation integrate design and the second chemical ... *30*17cmLED QTY 30/50/100pcs * (1w) applicationUsed in the tunnel, the subway, highway, little, development zone, charge station, islands ...