Kingbright WP154A LED Circuit Board Indicators feature pre-trimmed leads for pc mounting. The WP154A is housed in a white case that enhances the contrast ratio. The Hyper Red device is based on a light-emitting diode chip made from AlGaInP. The Blue source color devices are made with InGaNLight emitting diode. The Green source color devices are made with InGaNon Sapphire.