The Kingbright KA-4008QBS-D is a surface mount LED that is designed for use as an indicator light. It is an industrial-grade product that can be used in a range of applications, such as automotive, industrial, medical, and outdoor applications. The KA-4008QBS-D has a 4mm square package and features a bright, red light output. This LED is rated for an input voltage of 2 to 6 volts and an average forward current of 50mA. It has an average luminous intensity of 1,500mcd, a water clear lens, and a viewing angle of 120°. The device also has an insulation grade of UL94V-0 and is RoHS compliant.