solar lamp 1) Solar energy,free energy 2) Start to work when dusk 3) Lihgting time control by timer 4) CE,ROHS solar lampProducts FeaturesThe ... solar lamp is the same with SPS3-5W-1D if it ... billboards, trees, structures, walls, large areas1. building2. sign or advertisement Outdoor Use LED Solar Lamp SPS3-5W-2D