SPG3317-H / SPG3317-H(B) is a high brightness LED lamp with a colorless transparency lens type. It has a φ3mm(T-1) all plastic mold type and super luminosity. The forward voltage is 2.8-3.6V, luminous intensity is 1170-3960 mcd, dominant wavelength is 519-530nm, and spectrum bandwidth is -30-nm.