LA S35B, LY S35B UltraFlux LED enhanced optical power LED (HOP2000) is a lead-free product and RoHS compliant. Features: four lead package in through hole technology, focused radiation, high brightness in beam direction, 617nm (amber), 587nm (yellow) wavelength, 70° viewing angle. Suitable for traffic lights, substitution of micro lamps, marking illumination, and signal lights.