Have two leds alternating on and off but the second one is much dimmer,

I have an LED plugged into 13 and one in 12, I have programmed my arduino so they alternate on and off like a police car's lights but when the second light comes on, it is much dimmer than the first?

Please help.


I figured it out! :D

I didn't setup the second LED pin as an ouput, easy peasy :)