Product features ? full-structured cooling technology, excellent heat dissipation ; ? no gold eutectic welding tech, avoid the risk of disconnection and dead lights ; ? ip 67, excellent water-proof function ; ? one lamp bead`s not working does not affect others ; ? intelligent constant currant drive technology , ultra lifetime ; ? free serialization, full-power solution . Used for highway, main road, pavement street, residential road, branch road, rural roads, square, parking lots, gardens, Industrial roads, and indoor high space lighting, factories. Etc