SMD 3216 concave lens led lamp bead: low power consumption, high brightness, wide luminous Angle, instant lighting time < 100 nanoseconds (ns); Products are imported qualified chip manufacturing, durable light efficiency, stable output; Welding gold wire material from Japan Tanaka imported special supply, stronger conductivity, TOP LED life ≥ 50,000 h, is 5-10 times of ordinary energy-saving lamps, to ensure pure color temperature, products are in line with RoHS environmental protection halogens free process product requirements.