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）.