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SIGOLED Road Light (GRL Series) is the patent design (Patent No.ZL-201520802773.1)with tennis type hole cooling technology. We can support your bidding with IK08 Testing Report, Optical Testing Report,Vibration Testing Report, IP66 Testing Report, EMC/LVD certification, etc. Besides, we have three patents for photocontroller design which are good for smart control and energy saving(Patent No.ZL-201620345435.4,ZL-201620345994.5).