auto flash blue LED’s

Pack of 5 Automatically Twinkling blue flash LED’s these leds are clear water type 3mm LEDs with blue flash if you need to connect to a 12v DC supply then use 620 ohm resistors available from this section of the website will flash every one second automatically Suitable to simulate Emergency vehicle such as: police wagon, ambulance, fire engine and other alarm system. 3V DC 15 – 20mA Solder connections, Cathode 16mm- Anode 17mm Long+