This document describes the features and characteristics of LA W57B, LY W57B Golden DRAGON® Lead (Pb) Free products. The product is a point lightsource with high luminous efficiency and low space requirements. It is packaged in a white SMD package with colorless clear resin, and can achieve a maximum luminous flux of up to 17.6 lumens. The wavelengths are 617 nm (amber) and 587 nm (yellow), with a viewing angle of 120 degrees. The product is suitable for various SMT assembly techniques and can be used in traffic signals, backlighting, automotive interior and exterior lighting, replacement of miniature incandescent lamps, portable lighting, decorative light guide applications, signal and symbol lights, and facade lighting in indoor and outdoor areas.