RC Time Constant - LED's Parallel Circuts

[slavezeroyahoo]

i got a question in trying to connect LED in parallels but i keep burning them or one will light up and the rest wont and the resistors that im using is a 220 ohms, but the lights im using are white, blue red,green and yellow, and clock wise order, can you help please

[Remmy427]

@slavezeroyahoo make sure you have the polarity right on them, check the length of the leads to make sure you have the (+) (-) correct. If the leads are the same length then the LED usually has a flat edge that lets you determine the correct polarity, look up the LED online and you can probably find the data sheet.