Dialight 551-xx07 Series LED CBI® Circuit Board IndicatorsDialight's 551-xx07 series are a family of LED CBI® circuit board indicators. The consist of one 3mm (T-1) LED in a black plastic housing with a high centreline of 4.45mm. The black housing offers a high contrast whilst holding the LED at a right angle. They have 2 pins for through-hole mounting. The 551-xx07 PCB LED indicators are available in high efficiency, integral resistor, low current and bi-colour LED options. Features of the 551-xx07 PCB LED indicators:3mm through hole LEDsVariety of coloursRight angle black housingCompatible with 551-xx07-004 QuadBlockPCB LED Indicators, Dialight