Kingbright SMD LED Circuit Board Indicators (CBI). This family of LED circuit board indicators, from Kingbright, are surface mounted (SMD). They consist of a round LED within a black plastic right-angle housing. The black housing provides a high contrast ratio for the LED. The SMD circuit board indicators are available in both single colour and bi-colour LED options with a clear or tinted lens.. Features of the SMD LED indicators: Surface mounted (SMD) IC compatible Black plastic housing Wide viewing angle High reliability High temperature resistance