Size: 3mm, 5mm, 5mm (wide angle), 8mm, 10mm. 3mm FLASHING WHITE Ultra-Bright 3mm LEDs pk of 5. 5mm FLASHING WHITE Ultra-Bright 5mm LEDs pk of 5. Colour: Red, Green, Yellow, Amber, Blue and White. To do this you need to connect a resistor in series with the LED.
eBay