Kingbright Through Hole Flat Top LED Series Kingbright's range of flat top LEDs come in a 2mm package size, fitting a 2mm hole in a panel up to 3.5mm (0.138"). The flat top LEDs mount flush with the panel. These LEDs offer low power consumption and long lifetime with solid state reliability. The flat top LEDs are available in a variety of colours and are ideal for use as audio panel indicators. Viewing angle: 70°