... distribution patent technology (patent no. ZL200920141049.3), LED lamp beads according to different requirements of street and tunnel ... high as the current 140LM / W, than common LED lamp lights bead brightness improve more than 15%, Than ... playgrounds,factories,warehouses, illboards, building body, etc. LED Parameters LED Type BridgeLuxLED QTY 42PCSLamp housing material aluminum alloyLED Wavelength ...