... accidents.6. The common market for integrated lamp of street light, the luminous efficiency around 75LW/W; DGC's street lights, ... 40%.7. The common market integrated lamp beads of street light, the actual light decay per year decline in more than 40% ( ... internal electronics, but meanwhile to block the light, which causes the light losses. General speaking, loss of light in 20% or so. However DGCLED ...