WP71 Series Low Power LEDs Kingbright WP71 Series LEDs are the next generation of thru-hole, true color, low-power solid state lamps. Available colors in the WP71 series include hyper red, green, super bright orange, and super bright yellow. These Kingbright LEDs come in a T-1 or T-1 3/4 diameter package with general purpose leads. The devices are reliable and rugged and a long life through solid state reliability.